I’ve 16 on the identical battery packs, and I also also skilled several of just what you might be describing with unequal battery charging.
With my own, I know they are sulfated to several degrees, to ensure that possess caused certain imbalanced asking voltages. I bought my Lifelines at a decreased price as “NEW”, however they had seated for quite some time and happened to be deeply released before We actually had gotten them. I also finished up setting my cost voltages from the lower conclusion of Lifeline’s tips, so I would personallyn’t overcharge a few of the electric batteries.
Really works okay for an emergency back-up battery pack program this is certainly rarely neeed, but they are not at all the thing I’d wish to rely on for every day off grid life. Some day, i am hoping for a brand new group of electric batteries acquire off to just the right begin (and capture excellent proper care of all of them).
Re: 48 Volt battery financial wiring
We have found Edward’s “keyturbocars” thread in which he did a number of data and evaluating a create to recuperate Lifeline AGM battery packs:
If battery packs in collection (and parallel) tend to be really mismatched (in other words., close battery pack in show with sulphated power supply) might cause the unbalanced charging where one power was billing at “low voltage” together with other at “high current”.
Charging/recovering batteries separately may help. In addition coordinating batteries by capacity (“high” capability within one string, “low” ability in another collection string) might help too.
Re: 48 Volt power lender wiring
We accept Bill. Managing each battery separately is a good idea. Used to do they plus it did help my circumstance. However, my battery packs comprise to date attended get started with that the circumstances continues to be not big. Things are best however.
In case the electric battery lender are new plus much better disease then mine, then trying to equalize each power supply independently based on Lifeline’s therapy might give you great results.
Re: 48 Volt power supply financial wiring
Finally we examined the resting current they were within .01 to .10 of each and every some other. (really my personal battery packs never ever “rest”). Only examined (7:25 PM).. Neg part parallel batteries at 12.75v, .07 to .10 more than other electric batteries with about a 150w to 200w burden.
I purchased one two electric batteries March ’10 and finally sequence of four in Oct ’10. (in addition, a couple of strings have released batteries (12.5 – 12.7). I happened to ben’t thrilled to posses paid that kinda revenue for brand new batteries right after which have to spend several days charging you them before i possibly could use them).
On the whole, i am pretty happy with your little Lifeline electric batteries..
I’ve another little 4-battery-12v-system of Costco wet cell electric batteries. Little higher in total amp many hours versus Lifelines but of course, they simply can not grab most of a load for extended set alongside the lifelines
Re: 48 Volt power bank wiring
Your own electric batteries had been (and are generally) in far better shape than mine are. If mind serves me best, I think the my personal electric batteries are checking out only 11.5V while I took them out of the containers. They seated for just two AGES before i purchased all of them. More electric batteries happened to be greater, even so they happened to be all over the place. They certainly were all suprisingly low!
I thought I became getting much paying around 1/3 cost (acquiring 3 the cost of 1)!. In reality I found myself paying loads for scrap contribute! UGH! It is incredible at how good they have arrive around things looking at, however they are not at all whatever should always be. Eventually we intend to do it right. For the time being, they might be enough for just what Now I need.
As time goes by, I would like to bring a few chain from the 6V Lifeline GPL-6CT (large tennis cart proportions) which can be ranked at 300A/H each. Now, i will be sure that they might be factory fresh as well as from exact same whole lot. And I’m going to manage them as if they are produced from SILVER!
Re: 48 Volt battery pack financial wiring
Thank you and you will showcase David the design.
Re: 48 Volt power financial wiring
I am not saying keen on mix trapping electric batteries various strings. I like to keep each string as separate.
Crosstrapping makes it more difficult to recognize a battery pack heading worst. In addition, it provides a better potential for taking out fully even more good electric batteries since the terrible electric battery initiate increasing the charge current on other electric batteries. You can juggle batteries around sometimes to suit up show linked voltage per power and latest for every sequence.
I have ten chain of four series 12v electric batteries (forty battery packs).
I have 100 amp shunts on unfavorable contribute on each in the chain and watch each battery packs voltage frequently. You will find a common 500 amp shunt for a trimetric watch.
You will find two parallel strings per cart (about 550 pounds per cart) with 350 amp Anderson connector for every single of this five carts. Carts are on casters so it’s very easy to pulling the Anderson connector and move one cart completely for service.
Each cart is 27″ longer, 24″ high, and 15″ deep therefore doesn’t use excessive room from wall. Welded all five collectively, mostly from salvaged bed frame perspective metal.
Been running this config for 15 years. The fifth cart at much right had been a later add on rather than paired for cable length but I don’t have much current variance considering low-current per sequence making use of 2/0 interconnects.