I recently got a pair of Victron 60 ah NON-SMART 12.8v Lithium iron phosphate batteries on ebay. They were both received at around 13.2v which is fine, but the seller also gave me 2 more of the same spec that were each at around 9.9v.
Being the non-smart versions, I obviously can’t connect with bluetooth to see the individual cell voltage, but is there any way at all that this information can be seen? I currently have a Victron 100/20 MPPT charge controller, and will have a VE.bus BMS on order soon. Will the BMS interterface with the smart solar charger, or with any other device and pass the individual cell voltage on so I can see that?
I also have a rPi if it’s somehow possible to do with that...
I connected the two 9.9v batteries in parallel yesterday and charged them at 1A (the lowest I could set the smart solar 100/20) untll the votlage got to 11.5v this morning (it held at 10.04v overnight), where it seemed to stop, then upped it to 2ah and it’s now at 12.95v.
EDIT: It charged up gradually to 14.0v today, but it has since fallen back down to 10.73 now that no charge is coming in. I’ll se how it does overnight.
Any further thoughts welcome.