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locking for cheap configurable BMS for extended e-bike battery
#1
Hi,

Until I have enough Cells to build my own Powerwall I'm using temporay 3 times  36V e-bike batteries that I extended to 48V.
To not destroy them when they are in use I need some kind of BMS that is configurable to use the Batteries only between 4.0V and 3.5V.
I already tested the smart BMS that Daromer used for a 1kWh Pack, but would need three of this type for my 3 Batteries
and 50€ each is to expensive from my point of view.

So does anybody know a cheap confgurable BMS that I can add to each 48V Module and set it between 3.5v and 4V?


regards

cadric
1. Installed Grid-Tie System 2017 16,5kWp:  55 x 300Wp BenQ, SMA Tripower 15000-TL30 (18-east/17-south/20-south)
2. Building Offgrid System 7,5 kWp: 25 x 300Wp Solarworld (5x( 3S + 2S )), 2x PIP-5048, in process : 18650th Powerwall, Rest TBD
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#2
Use One of them and Connect the batteries to 1.
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#3
(07-07-2019, 06:53 PM)daromer Wrote: Use One of them and Connect the batteries to 1.

Hi daromer,

yes that is what I also thought, after asking this question, thanks for supporting me to that solution.
I will try to build some kind of a bus connector to parallel connect all e-bike Batteries I have that way....

regards

cadric
1. Installed Grid-Tie System 2017 16,5kWp:  55 x 300Wp BenQ, SMA Tripower 15000-TL30 (18-east/17-south/20-south)
2. Building Offgrid System 7,5 kWp: 25 x 300Wp Solarworld (5x( 3S + 2S )), 2x PIP-5048, in process : 18650th Powerwall, Rest TBD
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