Lithium batteries
Hi all, Quick question. I have asked some of the sellers, but have not gotten a response. My question is can you mix battery amperage 100 amps with a 200 amp battery? Thanks Lee
Forum Discussion
pianotuna wrote:I can agree with this disclosure. Primarily because the usage is unknown.
wa8yxm and time2roll. I have great respect for both of you, but this time I have to disagree.
From Battle Born:
"Can I Connect 100 Amp-Hour Battle Born Batteries to the 270 Amp-Hour Battle Born Batteries?
Here at Battle Born Batteries, we offer two different lithium battery sizes: our 100 Amp-Hour BB100 series and GC2 series, and the new 270 Amp-hour batteries.
These two different sizes of batteries should never be connected. Any attempt to connect Battle Born Batteries of different amp-hours will result in a voided warranty.
You should only ever connect batteries of the same size."
If pulling 100 or less amps there is no issue as the smallest battery can handle that. If expecting 300 amps there is a good chance the load will not be shared proportionally at all times causing a single battery to shut down from overcurrent.
Likewise even having the same size will not guaranty they all share the load equally. Put two 100ah in parallel and draw close to 200 amps and one could easily overload. I would recommend an overhead margin of maybe 20% to 30% of draw capacity in parallel. Four or more in parallel I recommend fusing each battery.
For typical RV use of lights and furnace... no issue.
