u/Fun_Introduction3994

▲ 1 r/battery+1 crossposts

BMS 4S, charge controller and 4 x 3.7V 18650 batteries

Hi Guys,
I want to assemble a Meshtastic or Meshcore solar powered device, but it seems that I cannot find accurate info about what to use. I find a lot of contradictory information.
So basically I have 4 x LiitoKala Lii-35A 18650 3500mAh 3.7V Li-Ion batteries that I want to connect in parallel.
I also bought a 5V - 20W solar panel, so that can push max 4A of energy throughput.
Between the batteries and the solar panel I want to install a solar charger controller and a BMS.
But I cannot find a charger controller that pushes more then 2A (CN3791) and 1A (the TP4056) but the panel is able to push 4A, nor I'm a able to find a BMS that works with parallel setups?
I see guys connecting 4 x TP4056 to get to 4A, but then again is that safe?
So is there somebody that can advise me on this part and maybe point out what to use to keep it uniform and safe?
Best regards!

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u/Fun_Introduction3994 — 3 days ago