Hello. I have this BMS I bought from batteryhookup.com
The model number is ZP20S007 from Xiaoxiang.
How do I bypass the discharge? I only want to use it for charging.
It also doesn’t have a bluetooth thing like all my other Xiaoxiang BMS. How does that work? Does that mean I can’t see my cells? It doesn’t look like it has built-in bluetooth.
I can’t find anything under the model number you provided, the closest I found was this JBD hardware bms https://www.aliexpress.com/item/1005007447563446.html
It doesn’t have Bluetooth, so you can’t easily monitor the battery, and bypassing the discharge is as simple as just bypassing the discharge. Put the bms on your charge circuit, not your discharge circuit.
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OMG. I just saw your reply on a similar thread in 2022. You posted this.
I guess that’s the same as mine.
I also looked at the model number. This is the only thing I could find.
It’s the same as what you posted. The only difference is the last number on the model number (ZP20S007 vs ZP20S006). I guess I won’t have battery monitoring. That’s fine. I only really need it for the charge.
Question though. b264 said to put a fuse on the charging. Why do I need a fuse on the charging line? Doesn’t the BMS limit the charging amp either way?
Also, since I’m only using charging, Can I unsolder or cut the thick blue and black wire and use a thinner wire? Picture in the link. (60V 20S 60A JBD BMS Board, Lithium-ion Battery at ₹ 1700/piece in Surat | ID: 2855145855462).
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Since you’re going to spend time on wiring up the BMS anyway, I would recommend that you get a decent one with a built-in BLE module. Being able to monitor cell voltages is a very useful feature. JBD has a variety of smart BMS-es and they don’t cost a lot.
You don’t have to use the fuse. It’s just an extra security measure but it’s not at all critical.
You can definitely use a thinner wire.
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This is what I use and it’s been working flawlessly so far:
https://www.aliexpress.com/item/1005004892183305.html
… only up to 14S though. If you need 20S then maybe this one would be a good fit:
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You can try out a project I have been developing, can connect to multiple JBD bms’es to your vesc controller via BLE:
You will need a vesc express, and an esp32(bridge) and some code:
EndlessSphere thread:
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I was just thinking what it might take to make jdb UART to vesc over CAN bridge.
your path is pretty cool.
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