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40A60A$144.81
JK BMS BD4A series — active balancing BMS with 0.4A balance current. Supports 4–8S configurations for Li-ion, LiFePO4, and LTO chemistries. Built-in Bluetooth with per-cell voltage monitoring via JK BMS app. Optional RS485 + CAN module add-on. Common-port design.
Specs verified May 29, 2026
Where to Find
Prices tracked across 1 seller* This page contains affiliate links. WattWorks may earn a commission at no extra cost to you. Learn more
Price History
Price History
Price changes tracked by the crawler
Current best price $25.92. Over the past 90 days: low $23.56, high $80.45, average $35.21 — down 26% vs average.
- AliExpress
All Records
120 price records in this period
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress(120 records) | |||||||||
| May 29, 202610:33 AM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | Yes | active |
| May 28, 202609:01 AM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | Yes | active |
| May 27, 202610:20 AM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | Yes | active |
| May 25, 202601:55 PM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | No | active |
| May 23, 202610:17 AM | $25.92 | $0.00 | $25.92 | $2.36 | — | — | — | Yes | active |
| May 22, 202609:01 AM | $23.56 | $0.00 | $23.56 | $0.00 | USSS02−$2.00 | — | — | Yes | active |
| May 21, 202609:07 AM | $23.56 | $0.00 | $23.56 | $0.00 | USSS02−$2.00 | — | — | Yes | active |
| May 19, 202609:09 AM | $23.56 | $0.00 | $23.56 | $0.00 | USSS02−$2.00 | — | — | Yes | active |
| May 18, 202609:08 AM | $23.56 | $0.00 | $23.56 | $2.36 | USSS02−$2.00 | — | — | Yes | active |
| May 17, 202609:01 AM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | No | active |
| May 16, 202609:07 AM | $25.92 | $0.00 | $25.92 | $0.00 | — | — | — | No | active |
| May 15, 202609:01 AM | $25.92 | $0.00 | $25.92 | $0.00 | SRUS02−$2.00 | — | — | Yes | active |
| May 14, 202609:07 AM | $25.92 | $0.00 | $25.92 | $0.00 | SRUS02−$2.00 | — | — | Yes | active |
| May 12, 202609:07 AM | $25.92 | $0.00 | $25.92 | $54.53 | SRUS02−$2.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $40.47 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $39.98 | $0.00 | $39.98 | $40.47 | SRUS04−$4.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $0.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 12, 202612:54 AM | $80.45 | $0.00 | $80.45 | $2.00 | SRUS07−$7.00 | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $40.47 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $37.98 | $0.00 | $37.98 | $40.47 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | Yes | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $0.00 | — | — | — | No | active |
| May 11, 202606:35 PM | $78.45 | $0.00 | $78.45 | $2.00 | — | — | — | Yes | active |
| May 8, 202604:29 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:29 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $40.47 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $39.98 | $0.00 | $39.98 | $40.47 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | $0.00 | — | — | — | Yes | active |
| May 8, 202604:28 PM | $80.45 | $0.00 | $80.45 | Initial | — | — | — | Yes | active |
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Specifications
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