BMS Per-Cell Cost?

[boom]

What are people generally paying, per-cell, for a system which includes:

• Charging
• Protections (overcurrent, under-voltage, etc)
• Active balancing

I'm curious about off-the-shelf systems vs DIY.

For systems based on 18650's or 26650's.

Not counting the cost of the cells, cell enclosures, wiring, etc. Just the circuitry.

 

[ProperHooligan]

What are people generally paying, per-cell, for a system which includes:

• Charging
• Protections (overcurrent, under-voltage, etc)
• Active balancing

I'm curious about off-the-shelf systems vs DIY.

For systems based on 18650's or 26650's.

Not counting the cost of the cells, cell enclosures, wiring, etc. Just the circuitry.

Pretty common for DIY folks to bypass the protection features and just use it for charging and monitoring. Those can be had for about $50 (I use a Daly). The BMS's that can handle high discharge currents can range from $150 to several hundred depending on how much documentation/features you want it to come with.

 

[boom]

Pretty common for DIY folks to bypass the protection features and just use it for charging and monitoring. Those can be had for about $50 (I use a Daly). The BMS's that can handle high discharge currents can range from $150 to several hundred depending on how much documentation/features you want it to come with.

can you link to an example? Like this?

Amazon.com

 

[ProperHooligan]

can you link to an example? Like this?

Amazon.com

There is some good info on this thread:

Post in thread 'Battery Build' Battery Build

https://www.aliexpress.us/item/3256805881158602.html

This is what I use
DALY Smart BMS Li-ion 20S 72V 40A https://a.co/d/2YiRZVQ