Sandman614
New Member
- Joined
- Aug 30, 2022
- Messages
- 1
Can anyone help identify the BMS in this Jackery Explorer 500 or a replacment. I've searched the part numbers on the board and browsed the usual suspects and haven't been able to find anything. For reference the part number: HTE042_BMS_P2, date: 2020-04-10, MARK2, chip part number: D502BB 507
Problem:
My friend ran the unit below 10% (big no no, according to Jackery), charged it with the AC plug and "it won't hold a charge" or "it will only work while plugged in". When I inspected it one cell was severely out of balance (1.88v) while the rest were moderately out of balance(3.83v - 4.08v).
Fix 1:
I balanced the cells with an active capacitive balancer. The severely out of balance cell is at 3.81v while the rest of the pack is at 3.83v.
Problem 2:
Same as Problem 1, it seems like the BMS isn't turning on it's output.
Fix 2:
New BMS with Balancing and Under Volage protection
Conclusion:
Jackery cheaped out on the BMS, no good Under Voltage protection or Balancing
Problem:
My friend ran the unit below 10% (big no no, according to Jackery), charged it with the AC plug and "it won't hold a charge" or "it will only work while plugged in". When I inspected it one cell was severely out of balance (1.88v) while the rest were moderately out of balance(3.83v - 4.08v).
Fix 1:
I balanced the cells with an active capacitive balancer. The severely out of balance cell is at 3.81v while the rest of the pack is at 3.83v.
Problem 2:
Same as Problem 1, it seems like the BMS isn't turning on it's output.
Fix 2:
New BMS with Balancing and Under Volage protection
Conclusion:
Jackery cheaped out on the BMS, no good Under Voltage protection or Balancing
