A Forum run by Enthusiasts of MidNite Solar

Battery talk (A place to discuss any and all battery technologies where the discussion may not fit into other topic areas) => Lithium => Topic started by: snoozer on July 25, 2017, 01:53:00 PM

Title: Battle Born batteries
Post by: snoozer on July 25, 2017, 01:53:00 PM
Long time lurker making his first post. I'm curious if anyone has any experience with Battle Born LFP batteries. The time has come for replacement of my lead acid bank, and they look promising. I am somewhat leery, based on their price point being considerably less than other brands (SimpliPhi), based on the old maxim "you get what you pay for". Thoughts?
Title: Re: Battle Born batteries
Post by: ClassicCrazy on July 25, 2017, 02:06:07 PM
Do you have a link to the specs on these batteries ?

Larry
Title: Re: Battle Born batteries
Post by: snoozer on July 25, 2017, 02:08:23 PM
Not the specs themselves, with a little digging I found the voltage and current limits for the onboard BMS. Otherwise, battlebornbatteries.com.
Title: Re: Battle Born batteries
Post by: Westbranch on July 25, 2017, 04:31:09 PM
here are  a  few links over on NAWS, who apparently is a dealer now...

https://www.solar-electric.com/residential/batteries-battery-storage.html?manufacturer=Battle+Born+Batteries
Title: Re: Battle Born batteries
Post by: ClassicCrazy on July 25, 2017, 11:42:55 PM
You can get Calb 100 AH cells for 128 each ( without shipping ) so 4 to make 12v pack  would be $512  .
That leaves about $400 to pay for  BMS and shipping.

Guess it depends what you want to do with them. . Those Battle Born say you can only series them to 24v and they only have 1 C discharge where the Calb have 2 C discharge capability .  You can charge the Calb at 1 C - not sure if you can do that with the Battle batteries  - I don't see any charge current specs so must be much lower than 1 C

Larry



Title: Re: Battle Born batteries
Post by: snoozer on July 26, 2017, 02:15:00 PM
Thanks, Larry. I will look into these.
Title: Re: Battle Born batteries
Post by: ClassicCrazy on July 26, 2017, 11:11:05 PM
Call a few of those EV car parts places listed on the Calb USA dealer website and ask their advice - they have a experience with different types of Lithium cells.
There are also some new technology lead acid gel type cells on the market that are not supposed to sulfate up ( lead crystal) that you could consider also. Depends on your needs. With lead acid usually you size to only use 20 to 30% of capacity for longest life span.
Also depends on temperature you will keep the batteries at as to which battery types will be best suited.

Larry WT9M