December 17, 20205 yr Hi Guys, Im busy with my project, and by the looks of it, i will have enough Cells to make a battery. 20a Cells. Max current 2A. My questions is Choosing the BMS. Im looking at the BMS from Lithium SA. https://lithiumbatteriessa.co.za/collections/bms/products/100a-ant-smart-bms-with-bluetooth-and-lcd?variant=35449073434791 It can do 50A charge current. My solar charger is a Victeon 250/70. My question is this. 1. Do i have to set the MPPT to 50A max charging(give or take 6a extra for base load of house) or can i keep it at 70A. Or 2. Does the BMS only take 50A charge and let the rest to wast. And final 3. Will it blow if i give to more than 50A charge? Atm, i have 4x 390w JA panels. I have a 24v system. Currently with 4x12v 100a agm. MPPT set to 46a max charging current. Batteries max charging limit is 20a. Looking forward to some great answers. Edited December 17, 20205 yr by neliuszeeman Change of Title
December 17, 20205 yr If you don't set the MPPT to limit the charge to 50A then the BMS will trip each time you go over the 50A.
December 17, 20205 yr Author Thank you @Louisvdw. So this means, A- get a charger that can handle 70a, or B- get 2x BMS amd split the battery in 2. Ive heard the Daly BMS is quite good. Is there anybody in South Africa that sells the 3.7v version.
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