LiFePO4 Battery Management Systems (BMS)
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Overkill Solar 12v 4S 120A BMS w/ Low temp Charging Protection!!
I have been testing BMS for over a year and many of them failed/were hard or impossible to program/heated up excessively etc.
Then I found this BMS. It is used in medical devices and it's top quality. I tested the low temp charging protection, over current protection and voltage cut offs and it passed all of my tests. What you need to know when using it:
Click here to buy from Overkill Solar (American distributor with customer support) And below is the APK file (to install on your android device) so you can program the low temp cut off settings: Version 2 firmware:![]()
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Overkill Solar 24V 8S 100A BMS w/ low temp charging protection
Same BMS as above, but in an 8S 24V configuration! We have been waiting ages for this, and it is finally available.
Click here to purchase now |
Overkill Solar 48V 16S 100A BMS W/low temp charging Protection
Finally here! Use this BMS to build a powerful 48V system.
Max output of 4,800W!! (48V X 100A) This BMS can handle a serious amount of power. Click Here to purchase now |
Low Quality and Cheap Daly BMS (No Low Temp cut off, but easy to install)
These work great as a bms, but your charging sources need a low temp cut off.
This is still my go-to BMS for quick projects. I don't care for data logging or changing settings on my BMS, so the Daly works great. I am running them in parallel in my shed at the moment without an issue. Very simple and works well! Some people do have problems with them. The new "smart" version seems to die easily. I would stick to the overkill BMS above. To activate a daly BMS, you must short out the P- and B- terminals. That will "wake it up". Click Here for a 12v, 100A Daly BMS Click here for a 12V, 250A Daly BMS Click Here for a 24v, 80-100A Daly BMS Click Here for 48v, 80-200A Daly BMS |