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 > Your search for posts made by 'bdosborn' found 6 matches.

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RE: Lithium Battery heater

You can build your own heater: DIY Battery Heater See post #14 Bruce
bdosborn 03/02/23 08:39pm Tech Issues
RE: Effect of no absorption on LiFePo4?

If I've posted something that isn't correct please feel free to correct it. I'd like to know if I'm spreading wrong information.
bdosborn 01/27/23 09:37am Tech Issues
RE: Effect of no absorption on LiFePo4?

10-4, thanks for the clarification.... Bruce
bdosborn 01/22/23 07:59pm Tech Issues
RE: Effect of no absorption on LiFePo4?

It seems like you're confusing my post with Don's, I didn't say anything about a "calendar-scheduled approach…". The Battery Management System (BMS) in all LiFePO4 batteries has a cell balancer built into it and it works every time the battery is charged completely. Some batteries (like Battleborn) need an absorption stage to give the balancer more time to work; they typically only balance at 500mA so it can take awhile. Its transparent to most battery owners unless they have a BMS that displays battery cell voltages. Its all in the specs of the battery you buy, if it doesn't say anything about an absorption stage then you don't need one. Bruce
bdosborn 01/22/23 07:24pm Tech Issues
RE: Effect of no absorption on LiFePo4?

So what is the effect on the battery to not have absorption? Probably nothing, your cells might be a little out of balance but that would be about it. Here's a link to a guy that explains what LFP charge settings should be: Andys Off-grid garage Bruce
bdosborn 01/22/23 05:54pm Tech Issues
RE: Effect of no absorption on LiFePo4?

Some LiFePo4 batteries recommend an absorption stage, it gives the BMS cell balancer time to work. The voltage region that most BMS balancers work in is so high on the charge curve that actual balancing might only last a minute or two. Here's what Battleborn recommends: Bruce
bdosborn 01/22/23 05:41pm Tech Issues
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