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JK BMS

Jikong's own jkbms.com product page states that JK BMS held a professional BMS engineer team with more than 10 years of experience in the electronics/battery BMS field, designing and producing active battery balancers and active-balancer BMS units for li-ion, LiFePO4, NMC and other battery chemistries.

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Owner rating1.0 / 51 reviewVerified reviews0Years in businessNot documentedCatalog products31

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1.0 / 51 review
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4.0 / 51 review
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1.0 / 51 review
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5.0 / 51 review
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JK BMS B2A20S20P active balance BMS

calvindf

Developed Serious Problems Over Several Weeks - Worthless Warranty

I had a battery with 16 prismatic 280Ah LFP cells which, as it turned out, were not Grade A and did not stay balanced. So, the reason for the purchase of an active balance BMS. For the first few weeks it performed very well and I was excited. Then the BMS began to spontaneously change the resistance numbers in the several of the leads. I check all connections and replaced some to make sure I hadn't done something wrong. The problem got worse and eventually there was an error message saying one of the cells was bad. I ordered 16 new prismatic cells and installed the same BMS on those. It wasn't long before it overcharged two of the cells so badly that they were swollen and unusable. Contacting the company was an exercise in futility. All they did was request more information over and over again. Some of which required me to leave the BMS installed, which I refused to do because of the previous damage. What I got out of my interaction with the company is that they believe they make a perfect product and that if there is a problem it is the fault of the customer. They have stop communication with me and I lost $160.

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