I am putting together a12V/1200Ah power system for my RV using following major Victron components:
6 x 200Ah Smart Lithium batteries
3K Multiplus
Lynx Smart BMS
Lynx Distributor
Cerbo GX
Smart Solar MPPT
Smart Battery Protect
I am trying to select the best “initial” solution for alternator charging from the 220A alternator in my 2023 Promaster van and am considering using BMS 12-200 for this purpose and have reviewed the technical information on this product from your web site. I have several questions and would appreciate some assistance:
Will the BMS 12-200 be suitable for my battery capacity? I would plan to use it with a 125A fuse for a 100amp charging current.
Does the BMS 12-200 have the necessary charging algorithm for the lithium batteries?
Can it continue to stay in the circuit after possible addition of a second alternator with a Wakespeed WS500 for additional charging current?
Can two 12-200s be connected in parallel? If yes, what total charging current can be expected?
One of the issues I am having with my configuration is that the total charging current from solar, shore power and alternator combined could exceed 400amps or more if two alternators are used. I was planning on connecting the batteries through an ANL fuse and a single battery switch to the Lynx Smart BMS. Each battery can be wired for the recommended 100A charging current. With 6 batteries in parallel, even a total charging current exceeding 400amps should not be a problem. However, the battery switch is rated only for 275amps which would limit the total charging current to 275amps.
Considering the above, I would like to investigate the possibility of splitting the battery bank into two 600Ah banks, each with its own ANL fuse and a battery switch before combining and connecting to the Lynx BMS. Would you recommend this approach, and if so, can two 12-200s be used such that each feeds its individual battery bank? Would the charging current from the Multiplus and the MPPT, routed through the Lynx Distributor and the Lynx BMS be equally split between the two banks?