Charge lithium battery with lead acid charger,is a car battery 12 or 24 volt 4-wheeler,car battery price pakistan news,battery service vehicle regulations - How to DIY

As you will soon see, on paper lithium ion batteries seem to be superior in almost every possible way – as if Zeus himself had climbed down from Olympus and handed the world the perfect battery.
To understand the promise and potential of lithium ion batteries for RV use, it helps to first understand the myriad of ways that lithium ion batteries differ from lead acid. Lead acid batteries are made from (not surprisingly) a mixture of lead plates and sulfuric acid.
Lithium ion batteries on the other hand are a much newer invention, and have only been around in a commercially viable form since the 1980’s. But as you might recall from the many news stories a few years ago around defective laptop batteries bursting into flame – lithium ion batteries also earned a reputation for catching fire in a very dramatic fashion. Just imagine how nasty the fire would be if it was a large battery burning, and not just a small laptop battery! This is one of the reasons that up until recently, lithium was rarely used to create large battery banks. But in 1996 a new formula for mixing lithium ion batteries was developed – Lithium Iron Phosphate. Now that large scale LFP batteries are starting to be massed produced (primarily targeting the electric vehicle market), we are now on the cusp of LFP batteries becoming practical for RV use! Unlike with lead acid batteries, it is considered practical to regularly use 80% or more of the rated capacity of a lithium battery bank, and occasionally more. Laboratory results indicate that you could expect to see 2,000 to 5,000 cycles out of a well cared for LiFePO4 battery bank, which means that a lithium ion battery bank has the potential to likely outlast your RV! In contrast, even the best deep cycle lead acid batteries are typically only good for 500-1000 cycles. This give you lots of flexibility to tap into energy sources whenever you can get them without worrying about needing to do a full charge regularly. This can be especially important when charging via solar, when you are trying to squeeze as much efficiency out of every amp as possible before the sun goes down or gets covered up by clouds.
Especially combined with the fast charging ability, this also translates to less fuel costs when running your generator to charge the batteries. But to be fair, while we are in the experimental phase with our own lithium battery system, they are far from maintenance free as we endeavor to tweak the system. The discharge curve of lithium batteries (especially relative to lead acid) is essentially flat – meaning that a 20% charged battery will be providing nearly the same output voltage as an 80% charged battery.
On the flip side, once lithium batteries are fully discharged, their voltage takes a nose-dive quickly – which is why tweaking your energy management systems to protect the batteries to absolutely never let this happen is vitally important.
Another huge advantage of lithium batteries is that Peukert’s losses are essentially non-existant.
And finally, the reason why most folks are intrigued by lithium… LFP batteries are much smaller & lighter!!! So not only is lithium smaller and lighter than AGM per amp hour, you need significantly less stored amps to get the same usable capacity. And that brings us to the biggest downsides of lithium batteries – the cost and the novelty. These uncharted waters don’t have a low cost of entry, particularly when compared to the Walmart specials on generic flooded lead acid batteries. If you consider the lifetime cost, and the fact that lithium batteries should (theoretically) far outlast even the best high-end AGM’s, suddenly the math starts to look compelling. I’ll dive into explaining how we weighed the lifetime costs vs the benefits, and will give the details on the costs and specifics of our new system in my next lithium post. By the way, we should note – we are not trying to motivate anyone to follow us on this path. Thanks you so much for your help, we just bought an old and beatifull 1964 Airstream Tradewind. We really want to build an exemplary hybrid solar eolic and propane generator electric system and we really apreciate your help. Indeed – many LFP cells can suffer damage if they are charged at more than a trickle while below freezing.
On paper – the LFP cells made with Yttrium seem to have much better low-temperature specs and can handle being charged even while extremely cold.
Definitely a challenge dealing with batteries in cold temperatures – even lead batteries have major issues to work around. 4 x 14 V Manazanita battery packs in series (54 nominal V)to give 9.7 kW-hours of storage (720 amp-hours at 12 V nominal).
We did retain a small Honda gas 1.0 kW generator for backup if we are forced to camp with a lot of shade or travel through extended rainfall. I love how you are using a higher voltage battery bank and inverter – that makes it easier to get away with much smaller battery wiring, and it allows for a relatively lighter and more efficient inverter too. I will definitely love to compare notes with you and hear how your system performs over time – it is definitely one of the most impressive I have seen!
Knowing what you know today with experience– what advice would you give me in building a Generator-Free Solar Energy System for my Travel Trailer? As far as solar, we have only just begun to scratch the surface of our research for starting that project ourselves.
We are choosing this path very consciously, and took this on fully realizing all of the risks. Invented by the French physician Gaston Plante in 1859, lead acid batteries were the first rechargeable batteries for commercial use. Lead acid batteries should be charged in three stages, which are [1] constant-current charge, [2] topping charge and [3] float charge. The battery is fully charged when the current drops to a pre-determined level or levels out in stage 2. During the constant-current charge, the battery charges to 70 percent in 5–8 hours; the remaining 30 percent is filled with the slower topping charge that lasts another 7–10 hours. The switch from Stage 1 to 2 occurs seamlessly and happens when the battery reaches the set voltage limit.
Once fully charged through saturation, the battery should not dwell at the topping voltage for more than 48 hours and must be reduced to the float voltage level.
Charging and discharging batteries is a chemical reaction, but Li-ion is claimed to be the exception.
The Li ion charger is a voltage-limiting device that has similarities to the lead acid system.
Figure 1 shows the voltage and current signature as lithium-ion passes through the stages for constant current and topping charge. Full charge occurs when the battery reaches the voltage threshold and the current drops to 3 percent of the rated current.
Li-ion does not need to be fully charged as is the case with lead acid, nor is it desirable to do so.
Certain industrial chargers set the charge voltage threshold lower on purpose to prolong battery life. Estimating SoC by reading the voltage of a charging battery is impractical; measuring the open circuit voltage (OCV) after the battery has rested for a few hours is a better indicator. When lithium-ion batteries must be left in the charger for operational readiness, some chargers apply a brief topping charge to compensate for the small self-discharge the battery and its protective circuit consume. Chargers for these non-cobalt-based Li-ions are not compatible with regular 3.60-volt Li-ion.
Lithium-ion operates safely within the designated operating voltages; however, the battery becomes unstable if inadvertently charged to a higher than specified voltage.
Turn off the device or disconnect the load on charge to allow the current to drop unhindered during saturation. Very usefull information here, good thing I fond this page first before designing a charger for my custom-made battery pack. The Batery is connected circuit 3,6 volt constant (regulable according to load) and this support a circuit for memory and a processor primary. Can lithium polymer cell phone batteries be over charged if left on charge to long and if left on to long will it diminish battery life. I would also like to brag of having had success restoring substantial capacity to the occasional cells that truly were worn. What i have believed is keeping my laptop plugged in all the time at my desk and using the battery power in case of power failure or so. A vendor of notebooks recently opposed and recommended to cycle discharges and recharges regularly to keep the battery healthy and prolong its life. What i have believed is keeping my laptop plugged in all the time at my desk and using the battery power in case of power failure or so does no harm to my battery pack. These batteries have been run down for some time now and do charge, the manufacturer cannot replace them.
How can the voltage be 2.4v when the minimum cell voltage for lithium batteries is 3.6v What should I buy to replace these? AFAIK Li-ion does not have memory effect and they have PMS circuit built-in so don’t overcharge. I have a simple ARM7 gadget and I want to run it on the Li-ion batteries which are available cheap. Informative article but the voltage drop in stage 3 would indicate a cell in poor condition.
About 5 years ago I purchased 40 nearly unused 18X65 cells in 2 cell packs with protect circuit. Why can the the battery pack in a Tesla automobile be charged considerably faster when the charging unit is 240v vs. Not all Li cells are the same so the numbers I use below are for the most common ones, some can be charged much faster.
I am unable to decide which is better - to select a Li-ion battery pack with multiple cells or single cell. We have limited information by how much lower charge voltages prolong battery life; this depends on many conditions, as we have learned.
I would connect the solar panel and the battery with a voltage regulator or with a MPP circuit that fixed the output voltage adjusting the output current of the solar panel catching always the maximum power from it. In conclusion the charging of the battery is done with a small and variable charge current. One question: Would charging a Lithium battery with a higher amperage charger (but same voltage) cause any damage to the battery?

Your use of this website constitutes acknowledgement and acceptance of our Terms & Conditions. Alessandro Volta in 1789 took a copper rod and a zinc rod and immersed them both in an acetic acid solution. Between 1890 and the 1970's, dry cell batteries increased in popularity, but there were no significant changes in design. Primary battery construction ranges from the basic construction used in carbon zinc and zinc chloride batteries to the more complex construction of more powerful batteries such as alkaline and lithium manganese. In alkaline batteries, the zinc anode is a zinc powder in the center of the can, surrounding a brass current collector. Lead Acid Battery cells consist of a Lead (Pb) electrode and a Lead oxide (PbO2) electrode immersed in a solution of water and sulfuric acid (H2SO4). Common examples of Lead acid batteries are car batteries, alarm system backup batteries, and camcorder batteries.
No more than six months, varies by temperature (longer at non-freezing low temperatures, shorter at high temperatures).
Lithium batteries have a lithium foil anode, a manganese dioxide cathode, and a lithium-based electrolyte. The Nickel-cadmium battery uses nickel oxide in its positive electrode (cathode), a cadmium compound in its negative electrode (anode), and potassium hydroxide solution as its electrolyte. The Nickel-Metal Hydride (NiMH) battery was introduced as another option to the Nickel-Cadmium batteries.
Two types of Silver Oxide batteries are available, one type with a sodium hydroxide (NaOH) electrolyte and the other with a potassium hydroxide (KOH) electrolyte. The Silver Oxide battery has a higher closed circuit voltage than a Mercuric Oxide battery and a flatter discharge curve than the Alkaline Manganese Dioxide battery.
Zinc air batteries operate very similarly to other button-cell batteries, with the significant difference being that other button-cell batteries are entirely self-contained.
Or maybe it wasn’t Zeus, but that annoying pink Energizer Bunny, bringing the gift of divine electrons pulsing to the rhythm of his eternal drum. The commonly used lithium ion battery formulation had been Lithium-Cobalt-Oxide (LiCoO2), and this battery chemistry is prone to thermal runaway if the battery is ever accidentally overcharged.
Known as LiFePO4 or LFP, these batteries have a slightly lower energy density but are intrinsically non-combustable, and thus vastly safer than Lithium-Cobalt-Oxide. Consider a 100 amp hour battery – if it was lead acid you would be wise to use just 30 to 50 amp hours of juice, but with lithium you could tap into 80 amp hours or more. Unlike with lead acid, there is no need for an absorption phase to get the final 20% stored. Lithium batteries charge at nearly 100% efficiency, compared to the 85% efficiency of most lead acid batteries. Theoretically, with lithium nearly every drop of sun you’re able to collect goes into your batteries.
They can also fairly easily be assembled into odd shapes – an advantage if you are trying to squeeze as much power as possible into a small compartment.
Until we perfect our setup, we are watching our batteries vigilantly.Remember, this is newer technology and barely even tested for RV use. This means that LiFePO4 batteries can deliver their full rated capacity, even at high currents.
Remember, that 100 amp hours of lithium will deliver 80 amp hours, no matter the discharge rate, without worry. And there are not a lot of resources you can turn to for tech support since the technology is so new. We are not selling these batteries, we are not affiliates with any battery dealer, we paid for all our components and nor do we have any financial stake in the technology beyond our own systems. Thanks for alerting us, we’ll track them down and proceed with a take down of the content.
The problem that I dont see mentioned, (and it is the one that has kept me from pulling the trigger because I live in Alaska) is that the batteries can be damaged if you attempt to charge them in cold weather. Older son has been in solar business in 1991 (Energy Concepts in Las Vegas, NM) and wanted us to do full-time with solar. Elaine operated wicro-wave for an hour several days to defrost a large chicken and the solar just about kept up with this. In spite of the fact that it is one of the oldest types of batteries, lead acid batteries continue to be in wide use today, for various reasons. The engineers argued that the term “sealed lead acid” is a misnomer because no lead acid battery can be totally sealed. The charge time of a sealed lead acid battery is 12–16 hours, up to 36–48 hours for large stationary batteries. The constant-current charge applies the bulk of the charge and takes up roughly half of the required charge time; the topping charge continues at a lower charge current and provides saturation, and the float charge compensates for the loss caused by self-discharge.
The topping charge is essential for the well-being of the battery and can be compared to a little rest after a good meal. The current begins to drop as the battery starts to saturate, and full charge is reached when the current decreases to the three percent level of the rated current. Battery scientists talk about energies flowing in and out of the battery as part of ion movement between anode and cathode. The differences with Li-ion lie in a higher voltage per cell, tighter voltage tolerances and the absence of trickle or float charge at full charge.
Full charge is reached when the current decreases to between 3 and 5 percent of the Ah rating. A battery is also considered fully charged if the current levels off and cannot go down further. Although the battery reaches the voltage peak quicker, the saturation charge will take longer accordingly.
Table 2 illustrates the estimated capacities when charged to different voltage thresholds with and without saturation charge. The current drawn through the device is called the parasitic load and can distort the charge cycle. This allows the battery to reach the set voltage threshold and current saturation point unhindered.
A fully charged battery has a lower thermal runaway temperature and will vent sooner than one that is partially charged.
Lead- and nickel-based batteries are also known to melt down and cause fire if improperly handled. The charge circuit is straight forward; voltage and current limitations are easier to accommodate than analyzing complex voltage signatures, which change as the battery ages.
Battery University monitors the comments and understands the importance of expressing perspectives and opinions in a shared forum. You’re alwais talking about a 4,2V like they are the the standardwhat about 3,6V cells? I looked on the internet for the issue and located most individuals will associate with together with your website.
For instance I’ve been letting it hover around 40% by continually plugging and unplugging it.
I think a constant voltage charge can be done but it takes a long time and must be done at a lower voltage. It was designed that way to account for commonly available power connections, commonly limited to 20A (use at < 80% of limit) at 120v but commonly available at 50 A or more at 240V. I know that my available curent and voltage at the time of charging will vary depending on the panel so in addition to overcharging I am wondering if capacitors to buffer power is necessary. He used manganese-dioxide powder as the positive electrode instead of copper; he kept the zinc. During the 1970's, battery technology began increasing rapidly, with new batteries and new ways of making the used batteries occurring regularly. Primary batteries are those batteries that are used only once and then discarded; they cannot be recharged. The electrolyte is potassium hydroxide, and the zinc and potassium hydroxide are combined in a gel. When the battery is connected to a load, the Lead combines with the sulfuric acid to create Lead sulfate (PbSO4), and the Lead oxide combines with hydrogen and sulfuric acid to create Lead sulfate and water (H2O).
A spacecraft battery consists of series-connected cells, the number of which depends upon bus voltage requirements and output voltage of the individual cells. Like Ni-Cds, NiMH batteries are available in the standard cylindrical sizes (AA, AAA, etc.).
Additional information and a more detailed cutaway view are available by clicking on the image. Sodium hydroxide types last two to three years making them highly suitable for quartz analog digital watches or digital watches without backlights. In contrast, zinc air batteries require oxygen from the external atmosphere in order to operate. This could lead to the battery setting itself on fire – and a lithium fire burns hot and fast. This is especially useful if you have an existing battery bay that is limited in size, but you want or need more capacity than lead acid is currently able to provide. I have a few ideas for ways around this like battery blankets run off the generator but you would have to disconnect the charging system before starting the Genset.
We tested this for several hours at night to make sure it will operate the ac without battery drain (after startup). Looking for a potential battery solution for them (100 amp-hour?), I stumbled across your very cool website & enviable way of working viturally anywhere! Lead acid batteries are very dependable and much cheaper with respect to the cost-per-watt. This is true and battery designers added a valve to control venting of gases during stressful charge and rapid discharge. With higher charge currents and multi-stage charge methods, the charge time can be reduced to 10 hours or less; however, the topping charge may not be complete. If deprived, the battery will eventually lose the ability to accept a full charge and the performance will decrease due to sulfation.
A battery with high leakage may never attain this low saturation current, and a plateau timer takes over to initialize the charge termination.

Charging beyond what the battery can take turns the redundant energy into heat and the battery begins to gas. This claim carries merits but if the scientists were totally right, then the battery would live forever. While lead acid offers some flexibility in terms of voltage cut off, manufacturers of Li-ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. With higher current, Stage 1 is shorter but the saturation during Stage 2 will take longer. Choosing a lower voltage threshold or eliminating the saturation charge altogether, prolongs battery life but this reduces the runtime.
State-of-charge (SoC) at this point is about 85 percent, a level that may be sufficient for many users.
Battery manufacturers advise against parasitic loads while charging because they induce mini-cycles. A parasitic load confuses the charger by depressing the battery voltage and preventing the current in the saturation stage to drop low enough by drawing a leakage current. The cathode material becomes an oxidizing agent, loses stability and produces carbon dioxide (CO2). All lithium-based batteries are safer at a lower charge, and this is why authorities will mandate air shipment of Li-ion at 30 percent state-of-charge rather than at full charge. Properly designed charging equipment is paramount for all battery systems and temperature sensing is a reliable watchman.
The charge process can be intermittent, and Li-ion does not need saturation as is the case with lead acid.
However, all communication must be done with the use of appropriate language and the avoidance of spam and discrimination. We recommend posting your question in the comment sections for the Battery University Group (BUG) to share.
Since the charger uses a standard micro USB tip, there are a lot of available chargers out there with different Amp rating. But upon plugging the charger to the batteries the green light immediatley came on, indicating a fully charged pack. When the above charging is done and the battery sits 12 hours, measuring the voltage and setting the float voltage to that is safe and gives maximum capacity but that voltage goes down as the battery ages. I have also considered a 3000mAh battery with an integrated charging circuit would be better.
They have the dual advantages of having both a higher initial voltage and longer life than secondary batteries of the same size.
The manganese-dioxide cathode is contained between the can wall and the separator, which keeps the cathode and anode from direct contact.
As the battery discharges, the Lead sulfate builds up on the electrodes, and the water builds up in the sulfuric acid solution. A nickel cadmium battery converts chemical energy to electrical energy upon discharge and converts electrical energy back to chemical energy upon recharge. They differ from Ni-Cds, however, in that they are capable of a higher capacity without developing what is often referred to as the Ni-Cd emory Issue.
The main difference between these two battery types is the substitution of a metal hydride instead of cadmium.
Potassium hydroxide types are better for the short bursts of higher current drains that are required from LCD watches with backlights. This saves space as well as eliminates the need for an internal, often toxic, material. And, if your charger is powerful enough, lithium batteries can also be charged insanely fast.
The battery distributors and manufacturers are still tweaking the energy management systems that protects the batteries too. So those opting to try lithium for RV use are pioneers, and need to educate themselves to fully understand what they are dealing with. Of course we’d love to have more folks out there pioneering and helping us take the arrows in our backs.
One mistake and cost for my system, $3174.00 down the drain and who knows where I might be sitting when I make that screw up. If one is not willing to take the risks and isn’t prepared to do a lot of the leg work and be intimately involved with their battery system, they should wait a few years for this to become mainstream. Very few types of batteries can deliver bulk power as cheaply as lead acid batteries, and this makes the battery cost-effective for auto-mobiles, uninterrupted power supplies (UPS), golf cars, and forklifts. Rather than submerging the plates in a liquid, the electrolyte is impregnated into a moistened separator, a design that resembles nickel- and lithium-bases system. They blame capacity fade on ions getting trapped, but as with all battery systems, internal corrosion and other degenerative effects still play a role. The so-called miracle charger that promises to prolong battery life and gain extra capacity with pulses and other gimmicks does not exist.
Boosting the voltage increases capacity, but going beyond specification stresses the battery and compromises safety.
Chargers for consumer products go for maximum capacity and cannot be adjusted; extended service life is perceived less important. Note that a Li-ion battery that has received a fully saturated charge will keep the voltage elevated for a longer than one that has not received a saturation charge. A battery may be fully charged, but the prevailing conditions will prompt a continued charge, causing stress. This offers a major advantage for renewable energy storage such as a solar panel and wind turbine, which cannot always fully charge the battery. Is it advisable to get a low Amp rating such as 500mah, higher amp such as 1200mah or stick with the same 1000amp? I commonly pull cells that are totally flat: 0v, sometimes even with polarity reversed by a few millivolts. A float voltage of 4.1 is reasonable to get best capacity but as the battery gets old, that MIGHT make it age faster. That would offer me more consistent ouput to the device and be a contingency for a lack of or poor lighting. The acid started to eat away the zinc rod, while the copper rod captured the energy released from the action. Gassner used zinc to hold all of the components and kept zinc for the negative electrode as well. Additional information and a more detailed cutaway view are available by clicking on the image. Hearing aids and electronic measuring instruments also use batteries with a potassium hydroxide electrolyte in combination with a special separator to match the application. If you can provide enough charging amps – you can actually fully charge a lithium ion battery just 20 minutes! No worries – with lithium, you can charge up what you can and not fret about leaving your battery bank perpetually undercharged!
This enables to operate the battery in any physical orientation without leakage. Driven by these advantages, several types of sealed lead acid have emerged and the most common aregel, also known as valve-regulated lead acid (VRLA), and absorbent glass mat (AGM). Should the pressure rise further, the safety membrane on some Li-ion bursts open at about 3,450kPa (500psi) and the cell might eventually vent with flame. If your concern is about a battery(a standard battery rating will be in volts and mAh), go for either one but in reduction in back up, in case if you chose 500mAh.Hope it cleared your doubt. In addition, some of the battery packs I ripped into were prehistoric by lithium chemistry standards (10 years+). Letting them set 24 hrs, I looked at the voltage drop and classified the lowest 10% as weak. I think charging with variable current is satisfactory if current is limited as specified on the data sheet and the voltage is limited to 4.1 volts.
Besides selecting the best-suited voltage thresholds, it is also important that the battery does not stay in the high-voltage stage for a long time and is allowed to drop after full charge has been reached.
I now believe its because I always left the phone on while charging whereas he turns his off.
Leclanch put the whole business, or the cell, into a glass jar and invented the first wet battery. While the initial voltage and battery life is less, they have the significant advantage of being reusable. The disadvantage of zinc air batteries is that they must be sealed from the outside atmosphere prior to use in order to prevent the battery from self-discharging. The stress level on the battery is high because the cycles occur at the high-voltage threshold, often also at elevated temperature.
More often than not all cells would recharge to their FULL original rated capacity and perform as new. So my question is; Why is the charger displaying a Green LED when in fact the batteries need charged. He also added zinc chloride to the electrolyte, which cut back zinc corrosion when the cell was inactive. He checked with Lithionics and Manzanita (both of which are interested in fabricating for RVs). And is there something I can do to make it start charging because the charger doesn’t charge when displaying a green light. He put the system on in June and we have not hooked into line power or generator since except for testing. The electrochemical principles that he discovered are still the foundation for the battery industry. Now, for the first time a dry cell battery was a neat, tightly sealed package, almost ready for mass production. As the battery is discharged, the process is reversed, as shown in the following formula.
Batteries were first mass-produced in 1890 by the National Carbon Company at their plant in Cleveland, Ohio.

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Comments Charge lithium battery with lead acid charger

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  3. 113
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