What batteries do i need for my solar lights,win survival gear 2014,vin search germany 2014,types of water resources in pakistan - You Shoud Know

30.10.2015
The vast majority of residential solar electric installations happen in locations where the utility grid is readily accessible and no battery storage is required. Sunsense has recently installed three photovoltaic systems that are equipped with battery backup. Another interesting development in the backup power offerings by SMA is their new TL series of inverters with a remote power supply.
Batteries add a significant cost to a PV system, but add the assurance and comfort of never losing power. Sunsense strives to evaluate the goals and needs for all of our client’s and look forward to working with you on your next custom PV project. Let’s start with clarifying the difference between automotive and deep cycle batteries.
Deciding on a water filled, AGM or Gell Cell can be done by answering a few simple questions.
When replacing only one battery in a bank of batteries most technicians will tell you that you must replace all of the batteries in the bank. Other articles and general RC information are also available on my website, including many I've written on Arduino microcontroller programming. Thanks for the charging article, I say that because you refreshed my knowledge, its a good thing to do when you have a regular task that is at times boring and mundane, for safeties sake. The reason hobby shops don't typically sell the stuff is because most people don't understand enough about what's going on with their batteries and are pretty likely to have a mishap at some point. Yes, it's not a problem to do if you're careful, and know what you're doing, but IMO if you need a step-by-step how-to you should probably just stick to standard charging for now. I'm not suggesting it's something that should be kept a secret or anything, just that it's not something I think beginners should be encouraged to do. Based on my experience and knowledge, my logic in my article (Rule of Thumb 5 above) is sound.
For a simple, unprotected (ie: no passive or active circuitry involved) parallel charge harness or board, follow what I have stated above. Can you please post a link to the exact board, or explain exactly which one it is so I can look at it?
4) The board is specially designed to have current-limiting resistors, polyfuses, or other passive or active circuitry in the balance lead connections in the board to prevent over-current. One more note: it IS correct, as they have stated, to connect the charge board to the charger BEFORE connecting the batteries to the charge board. Also, on a side note, my website has a slightly more complete version of My Parallel Charge Article if you want to take a look at it there (link is at the top of this article), though they are both the same content overall. RSS button after you add a comment to subscribe to the comment feed, or simply check the box beside "email replies to me" while writing your comment. Second, the rating for a solar panel usually assumes that the panel is kept at its Maximum Power Point ("MPP") by an internal or external controller. You also assume that all of the energy that the solar panels put into the batteries will come out. Next to the max 40% discharging that you've already calculated in, the efficiency of the batteries will mean that you get much less out of the batteries (which essentially is what the system is about) than the solar panel put in. Roland --- But there should be less going into the batteries than I calculate too since the solar panels won't be 100% efficient, etc. Just giving you the heads-up that the complete setup might be a lot less useful than you might think. That's why I would suggest you get a good charge controller that has at least a battery voltage display and preferable an indication of the charge level for each of the batteries. While I can appreciate the curiosity aspect of experimenting and the satisfaction aspect of being self-sufficient, the cost of "free electricity" via PVs is about 3x the cost of grid power, not to mention the unreliability for those of us who don't live in the SunBelt.
Doc --- I think the real environmentally friendly energy solution is cutting back, not changing gears to another technology. However, at the household scale, having a small system like this to protect us during those 10 day grid outages makes sense, even if the solar power is three times as expensive and not as green as many like to think.
So, your total household energy bill for an average month is for 353 to 432 kilowatt-hours, or are there other categories beyond appliances and heat? Mark hasn't weaned himself off his air conditioning in the summer and electric heat when it's only moderately cold, and I haven't even tried to wean myself off our electric stove and freezer.
Yes you CAN fit too much in the batteries and actually boil them and will release hydrogen gas which can be flamable. We'll definitely have a charge controller --- I think it actually came with the solar panel kit from Harbor Freight. Conservation is, of course, the key, particularly if recyclable energy sources rather than non-renewables can be employed. My theory with backups is that they should be used all the time, or they won't work when you really need them (and generally won't be at all cost effective). There is still a lot to learn, but I think this will be fun and not a total waste of money and time. I would like to do a little DIY project to experiement with LED, solar, and battery lighting.
2- LED flashlights: assume you get 1000 lumens from the 1600 lumen LED flashlight, that is still good. Calculate the power consumed from that for sizing a battery supply for the solar system to operate that LED light. Hi This is Jon In Hawaii, I think it's grand what your doing and the world is full of folks saying it can't be done till someone like you just does it! I just posted this in a much older thread, but then I found this recent one, so I thought I'd jump into the current conversation. Could you put the electricity to use as it comes in, instead of trying to sell or store it with a grid tie or battery bank system?
I happened on your site because I was trying to figure out how many batteries I could charge with a 220 watt panel. I like the look of where you live, I see you are spoilt by having an open sky to capture as much sun as possible. I've been living off grid for thirty years and it is now second nature to turn off the light once you find what you're looking for. It has long been clear to me that solar power is not for anyone who wants to live a "normal" life but for those who can accept living off grid without feeling hard done by, it is fine.


I started my system with 5 45 watt panels with a 30 amp regulator and a 600 watt converter. What I wanted to mention was just a little thing which you do not seem to have touched on, second hand stuff. What I want to do is fix a panel onto the roof of a truck and I was curious about how many batteries I could hitch to it.
It was a great pleasure to read your opening statement where you said that your plan was to buy your panels and batteries when you had the money.
Hi, I found this blog when searching for information about existing solar systems that are actually in use.
I want to add my own experience with solar: in the last 2 years I have used solar energy for powering the consumer circuits in my campervan(s).
Here are a few data from my solar experience: one 150W solar panel, flat mounted on the car roof (therefore no optimal direction towards the sun), in moderate UK climate (probably similar to the US Northwest). Being mounted in a car, the car alternator kicks in when the car is driving, and helps recharging the battery.
So my view is that it is better to get more solar power instead of more battery power, so that the solar power is able to charge the battery fully every day.
I want to use solar panels above my 8'X10" shed to run a 9.500 btu air conditioner for 7 hours a day. This is not brain surgery so don't get so wound up about the technical details and go with what works.
I am from Nigeria, we just moved to a personal house and i'm planning to go off grid.Starting 150w-12volt Ra battery, what size of solar panel and inverter do I go for? However, more and more grid connected homeowners are considering a battery back up option for their Photovoltaic (PV) system. In normal operation this type of PV system functions similarly to any grid direct PV system where the energy generated by the solar modules is converted from direct current to alternating current at the inverter, and this energy is fed directly into the grid. The SMA TL inverters also provide this assurance, but are limited to the power that the PV array is producing during the daylight hours. From the time we unlock the power door locks, open our entry door (step extends), turn on an interior light, cool the RV refrigerator (circuit board needs 12 volt to operate on gas or 120 volt electric), control interior climate with furnace or air conditioning (thermostat operates on 12 volt) the batteries must be providing us the necessary power to allow this to happen. An automotive style battery is constructed to allow a high rate of amperage output as is needed to start an engine.
Ex: 500~1500 mah batteries together, or 1300~2200 mah batteries together, but not a 500 mah battery with a 10,000 mah battery. Ex: it is not as advisable to put a new battery with a 2 year old battery, but not critical as long as the batteries are similar capacities (mAh ratings), the same cell count, and at similar discharge states.
Charging is mundane and if done without care and attention can have unfortunate results, thanks again for the article.
This way, with this particular board, it is intended to handle batteries of wildly varying voltages. Otherwise, the charge board main leads could be dangling around touching each other (short circuited), which is very bad when you plug in the batteries. If the panel isn't operating at or near its MPP, its efficiency will plummet, and it will put out much less power than rated.
And I'm guessing that you will use more power in the winter because you have more time, but in that period you'll also have the least input. We live off the grid and I can assure you that you can read all these statistics and equations, and then throw most of them out of the window. My various parts should be getting here this week and then I will have everything except the batteries. Sharing knowledge & ideas without attitude is what I've been seeing here and LOVE it!!! I would like to relate that early last year I built a small system to keep my 200 foot food storage shop cool.
I make toys and I have a few electric tools which work fine through the day, even for a couple of hours in winter. I installed my off grid electric solar system for less than $1,200 dollars consisting of four 100 watt Reno panels at $388.
Trying to do the same project, but utilizing much smaller batteries (from a few computer UPSes) and panels (I have 4 x 15W panels). The battery is a 12V "leisure battery" which can be drained deeper than regular 12V car battery (still it should not be drained more than 50%) with a capacity of 115 Ah. This is a bit "cheating" regarding the self-sufficient solar aspect, but I have no other choice since my main priority is to keep the battery fully charged. In case there is more energy needed than can be absorbed by the batteries, then one can just use more electric consumers which are then live powered. Systems with battery backup still maintain the same net metering relationship with the utility where they are credited for the power that they are generating, but also have the ability to run off the batteries in the event of a grid failure. This system allows for the input of many different sources of power including wind, solar, hydroelectric and generator power.
They are equipped with a switched outlet that can provide a limed amount of power to critical loads in the event of a grid failure without the use of batteries. This battery can only be discharged at a high rate for a short period of time before it is completely discharged or dead.
In most diesels we see two 12 volt batteries connected in parallel to provide enough power to start that big diesel engine. My advice is to just understand that a new battery will not  improve old batteries but old batteries will bring down that new battery to their level as soon as they are connected. Currently the problem is our charging systems are not  designed for Lithium-ion batteries plus they are very expensive. This prevents high currents from flowing through the balance plugs as the batteries equalize based on their varying voltages upon plugging them in. Plug in the *main* lead of each battery to the charge board first, give them a little time to equalize, *then* plug in the balance lead.
You plug in the balance leads, which have current-limiting built in to the board, and wait several minutes, then you plug in the main leads, which have no protection. Only after that will it be possible to draw real conclusions about the viability and effectiveness of solar power for you.
Here in the Netherlands, power outages tend to make the headlines, because they are few and far between.


CAUTION -- LED small flashlights will get HOT and degrade the LED or the electronic control circuits if left on HI Beam for extended periods of time. My approach has actually been slightly different: I did NOT attempt to get the biggest battery so that it could absorb the generated power from the solar panel, but rather tried to get the biggest solar panel so that it could top up the battery. What batteries do we need to hook it up.The trailer came without batteries for the inverter. Though most utility grids are very reliable, the battery backup option provides the owner with the assurance that they can power critical loads in the absence of the grid.
This flexibility allows for the owner to take advantage of any renewable resource available at their site. These batteries could handle more intensive discharge and recharge so when the sun isn’t providing any power you do not have to worry about your battery dieing. Deep cycle batteries are constructed of thicker plates which allow for a lower rate of discharge for a longer period of time. When batteries are connected in parallel the voltage stays the same but we add the power (amperage) of both batteries. The physical size of the battery is important but doest not determine the power in a battery.
If the remaining batteries are one or two years old and in good condition it could be OK to add just one new battery. If the batteries are too different in charge state, the current rush though the small balance leads could fry the leads, causing the tabs in the battery, or the connections, to literally melt or disintegrate off. The current-limited balance leads A) protect the leads from otherwise frying if they were not protected, and B) allow the batteries to more slowly self-equalize before plugging in the main leads, where large currents could otherwise surge and damage the lower-charged pack otherwise (see my Rule of Thumb 3 above). I use around 18-20 MJ of electricity per day (used for appliances), averaged over several years.
It might look good on paper, but there is just very little truth in it when it comes to practical application.
Also enjoyed reading other people's setups for whole houses (and rooms) trying to figure out my needs for my house which I intend on converting to the off-grid one. After doing some research, I found that it is important to keep the battery topped-up, as only then it will perform fully. The other balance of systems package we have used is Schneider Electric’s XW system that allows AC coupling as well. Most commonly the manufacturers use two or more 6 volt batteries in series for house power.
Some things that determine the price of the replacement battery will be the rating  and warranty period. In the same period the average amount of energy used for heating my home and producing hot water (in the form of natural gas) was 70-100 MJ per day.
So if the solar panel is not able to recharge the battery completely, even on a cloudy day, then the battery will slowly drain away.
The third balance of systems package that we selected was the Outback Power Systems GTFX series. A deep cycle battery being used to start the engine may not be able to provide enough amperage for the starter to function properly. So if I were to look for renewable energy, I'd look for a renewable source of methane before electricity. Therefore, in my opinion, it is better to oversize the solar panel, even if that means that the solar controller will then not pass on the additional energy into the batteries, once they are full. This system is a backup system that allows for the grid interconnection, and generator backup capabilities.
We even generate power on cloudy days and we live in an area that is second only to Seattle for worst area for solar. If you still questions regarding your solar panel setup please do not hesitate to give us a call 510 400 814. Another advantage of the deep cycle is the ability of the battery to be completely discharged and recharged without damage.
For the average RV’er, staying connected to shore power and only dry camping for short periods of time makes the 6 volt batteries in series the most efficient system.
New PV panels are very efficient 90-95% and at times we can get 110% efficiency out of them under the right conditions. Our mi-fi give's us all the Internet we need or use since there are no TV stations and one radio station.
These sealed lead acid batteries are commonly used in telecom sites to backup signal repeaters and cell towers, and have a significant lifespan, depth of discharge, and are completely maintenance free.
An automotive style battery can only be completely discharged a few times without causing damage. However, if dry camping for extended periods of time 12 volt batteries connected in parallel will provide more power. Now there are many,many aspects that go into how efficient your system runs, but for your experimental purposes it wont really matter and can bog you down.
Our electronics consist of two 9" samsung pads, Mifi internet, erasers and two cell phones. It provides a powerful short burst of energy and is not designed to provide power for a long period of time. We also made power with the panels just laying on the ground for weeks while we built the panel tracker.
It is also not designed to be discharged and recharged often; the life span of this battery will be greatly reduced if it is used to power the 12 volt system of a 5th Wheel or frequently used by an inverter. I think it is wonderful you are going to play around with this little system because I think that far too many people 'read' about solar rather than have any experience with it and thus misinformation makes its way out there.
We get solar power even on cloudy days maintain 13.6 volts enough to keep batteries maintained.



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