Series & Chemistry
Selecting a documented series range and chemistry for the battery system.
- BFJ-HMW04S100A013–4S · Li-ion (ternary) / LiFePO4 / Sodium-ion
- BFJ-HDSH04S300A014–8S · Li-ion (ternary) / LiFePO4
Lead-acid Replacement BMS Solutions
Compare two distinct approaches to lead-acid replacement battery projects: a hardware protection board and a smart BMS platform. Select a path based on the documented configuration and integration requirements.
BMS Options for Lead-acid Replacement Battery Systems
Hardware Protection Board: BFJ-HMW04S100A01 documents a 3–4S hardware protection architecture, Li-ion, LiFePO4 and Sodium-ion configurations, and continuous current up to 100 A. Smart BMS: BFJ-HDSH04S300A01 documents 4–8S Li-ion and LiFePO4 configurations, communication options, and module series and parallel support. These are separate product paths; capabilities must not be transferred between them.
Match Your Project Requirements to Documented BMS Capabilities
Common project considerations may include chemistry, cell configuration, current and the need for communication or module interconnection. Communication is not documented for the hardware board. Series/parallel support and the heating interface belong to the smart BMS; its continuous operating current requires engineering confirmation. Neither path establishes drop-in compatibility with an existing charger or battery system.
Communication
Reviewing the communication interface between the BMS and host equipment.
- BFJ-HDSH04S300A01CAN / RS485 / UART
Current Handling
Confirming the operating current against the selected configuration.
- BFJ-HMW04S100A01Up to 100 A
- BFJ-HDSH04S300A01Need engineering confirmation
Heating
Discussing whether a documented heating capability is relevant to the project.
- BFJ-HDSH04S300A01interface available
Parallel Support
Reviewing documented parallel capabilities where the battery architecture calls for them.
- BFJ-HDSH04S300A01Parallel support documented
Display / Bluetooth
Considering documented display and Bluetooth options for system interaction.
- BFJ-HDSH04S300A01Display: optional external · Bluetooth: optional external
Low-power Design
Discussing low-power behavior where documented for the selected BMS.
- BFJ-HDSH04S300A01Low-power design
BMS Series for Lead-acid Replacement
2 series with documented application relationships. The two product paths are shown separately below. Review the hardware protection board for its documented protection architecture, and the smart BMS for its documented communication and module-integration functions.
Hardware Protection Board
Hardware BMS & Protection Boards
Hardware Battery Protection Board
BFJ-HMW04S100A01
- Series
- 3–4S
- Continuous Current
- Up to 100 A
- Chemistry
- Li-ion (ternary) / LiFePO4 / Sodium-ion
Smart BMS
Smart BMS
Lead-Acid Replacement Smart BMS
BFJ-HDSH04S300A01
- Series
- 4–8S
- Continuous Current
- Need engineering confirmation
- Chemistry
- Li-ion (ternary) / LiFePO4
- Communication
- CAN / RS485 / UART
Discuss Your Lead-acid Replacement Battery Project
Share your battery chemistry, series configuration, operating current, communication and mechanical requirements. Our engineering team can review the available series and discuss whether custom development is appropriate.
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