bdosborn
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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. Bruce784Views0likes0CommentsRe: Effect of no absorption on LiFePo4?
Ramblin' Ralph wrote: 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 Bruce785Views0likes0CommentsRe: 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: https://battlebornbatteries.com/programming-a-victron-smartsolar-charge-controller/ Bruce784Views0likes0CommentsRe: Battery monitor that connects to wifi
KJINTF wrote: I had high hopes for this solution it looked great. To bad the only compatible Raspberry Pi 3 B+ version is not available any more or at least any where I can find it. I see the 4 version is not compatible and way more expensive. The Raspberry 4 with 2GB of memory is $45. Unfortunately, they are on back order till March. Pi Linky I'd place an order now if you want one. I was going to buy a Pi 4 after the last back order but they sell out quick once they are released and I missed it. Bruce1.3KViews0likes0CommentsRe: Battery monitor that connects to wifi
KJINTF wrote: The Victron "solution" is way expensive, requires internet and a cloud login. A Raspberry Pi is $35, the cable between the Victron battery monitor and the Pi is $25. I can access the battery monitor remote console over my local subnet without using the cloud access. It's not anywhere as robust as the VM portal but it gives basic info. Here's a link to what the remote console looks like: Here's a link to the free Venus software for Raspberry Pi: https://github.com/victronenergy/venus/wiki/raspberrypi-install-venus-image Buce568Views0likes0Comments
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