I bought 3x 100ah 12v Xubi LiFePo4 batteries from Alibaba. Shipping was around 6-8 weeks with COVID. I'm running 3x in parallel and so far they've been great. One 3 day trip with motoring, and day cruising where I run the fridge and AP.
So far no issues. If the BMS does disconnect for high-voltage cutoff while the Alternator is charging / spinning then it's going to blow something up in the alternator. To mitigate that I've been running our starting bank in parallel while the motor is running (and most of the time sailing as well). There is a relay that is available from Marine How-To that combines the house and starting banks when the voltage is above 13.4v or something like that. The Xubi batteries are drop-in style and have a charging rate of 50A and discharge of 100A, so plenty of power in and out for my needs. We have a newer 40A charger that has no issues charging. Usually my 30 minutes of motoring with the 2GM20 40A alternator charges me back up to 90+% so I don't worry about topping them off. On Tue, Sep 14, 2021 at 9:27 AM Della Barba, Joe via CnC-List < cnc-list@cnc-list.com> wrote: > My batteries are about shot and I am thinking of going to lithium batteries >
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