Pacmanmb Posted September 13, 2020 Posted September 13, 2020 Hi guts - have moved from 1 5kva axpert inverter with 20 x gell deep cycle batteries to 2 x axpert parallels with 4 x US3000 pylontech banks - about 300ah output - can I use 3 banks - each battery bank is 100ah with the pylontech for extra power - my 20 batteries are still perfect Quote
Louisvdw Posted September 14, 2020 Posted September 14, 2020 The short answer is that you cannot mix lithium batteries (PylonTech) with lead acid batteries (gel). They work and charge at different voltages. ___ 1 Quote
___ Posted September 14, 2020 Posted September 14, 2020 Pylontech is 15-series LFP and cannot go above 54V (the BMS switches off). Lead-acid can float at 54V but it would take a week to recharge it at this low a voltage. It needs 58V to absorb properly. If you had a 16-series LFP battery, that would change things a bit. It would still not be advisable (mostly because of the danger of a bad lead-acid bank in parallel with a healthy LFP string!), but it would at least work in an emergency Quote
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