Chengdu BMS JK (Jikong) + Haiguang Lanyu + Heltec (Source: JK): Golden Rule: Choose active balancing (Source: JK); Core Product: JK 200A energy storage BMS (Source: JK); Key Features: CAN, Bluetooth, and 4G communication (Source: Haiguang Lanyu).
I.
JK Technology (Jikong)
Chengdu: Chengdu JK Technology (Source: JK); Active Balancing: Lithium battery active balancing protection board (Source: JK); 200A: JK-PB2A16S-20P 200A (Source: JK); 150A: PB1A16S-15P 150A (Source: JK); Series Configurations: 8S, 12S, 16S, 20S (Source: Accio)—JK: Active balancing + High current + Multi-series support (Three advantages).
II.
Haiguang Lanyu
Chengdu: Chengdu Haiguang Lanyu New Energy (Source: Made-in-China); 80A: 16S 48V 80A IP67 (Source: Made-in-China); 100A: 16S 100A remote upgrade (Source: Made-in-China); 120A: 16S 120A golf cart application (Source: Made-in-China); Communication: RS485, UART, CAN, Bluetooth, 4G (Source: Made-in-China)—Haiguang: IP67 rating + Remote upgrade + Multiple communication protocols (Three capabilities).
III. Heltec
Chengdu: Chengdu Heltec Energy (Source: Heltec); Full Series: 3S, 4S, 6S, 8S, 10S, 14S, 16S (Source: Accio); Wholesale: Manufacturer/Factory direct wholesale (Source: Heltec); 4.7: 4.7/5.0 rating (Source: Accio); Monitoring: Smart monitoring of voltage, current, and SOC (Source: Heltec) — Heltec: Full Series + Wholesale + Monitoring (Three Key Features).
IV. Del Electronics
Chengdu: Chengdu Del Electronics (Source: Del);
Protection Board: Lithium battery protection board/BMS (Source: Del); Patents: Multiple patented technologies (Source: Del); Balancing: Continuous/Real-time balancing (Source: Del); Independent: Independent R&D with deep specialization in lithium BMS (Source: Del) — Del: Protection Board + Patents + Balancing (Three Key Products).
V.
Group Background
Maiyue: Subsidiary of Chengdu Maiyue Shidai Huaxi Energy (Source: Maiyue); PACK: Lithium battery PACK sector (Source: Maiyue); BMS: BMS R&D and manufacturing system (Source: Maiyue); Energy Storage: Energy storage batteries and outdoor power supplies (Source: Maiyue); Recycling: Lithium battery recycling and reuse (Source: Maiyue) — Maiyue: PACK + BMS + Recycling (Three Key Business Areas).
VI. Key Selection Criteria
Balancing: Prioritize active balancing (Source: Jikong); Current: 150A/200A specifications (Source: JK); Communication: CAN, RS485, Bluetooth, 4G (Source: Haiguang); Certification: ISO9001 (Source: Made-in-China); Upgrades: Remote firmware updates (Source: Haiguang)—Factory selection: Balancing + Current + Communication (Three-point check).
VII.
Purchasing Recommendations
First, choose Jikong (active balancing); second, consider Haiguang (IP67 rating); third, compare prices (Heltec wholesale); fourth, pair with Daly (protection board);
fifth, verify upgrade capabilities (remote OTA)—Chengdu BMS: Jikong + Haiguang + Heltec (Three recommendations).
