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BMS Common vs Separate port
#1
Hello,


Could someone tell from own experience which of the BMS is better? With common or separate ports?  


Some people say that common is much better, but i found information where separate is also have advantages. 


got confused :|

t.y.

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#2
Common port is for systems where you have the load and charger coming from same source.

Split source /load is generally made for where you want the BMS only to cut the charger and not the load. Like Ebikes.
Sed6 likes this post
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#3
But on the powerwall it’s more important do not cut the load. while ebike is charging not while the driving so whats the problem to cut the load (motor) if the bike is charging plugged in to the socket?
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#4
How do you intend to start using an ebike IF load output is cut after charging? Once again IF you have separate Charge and load use separated ports. Unless your Charger talks to the bms
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
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#5
OK. looks like i still have a gap of knowledge about the way BMS works Smile
So in other words i understood that for offgrid (or ongrid) powerwall i have to buy BMS with common ports.
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#6
IF you skip ebike bms then thats what you Will get.
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
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