BM21 Smart Battery Monitor

Accessory for JKBMS monitoring, display, communication, or parallel operation

BM21 Smart Battery Monitor is a JKBMS accessory listed from $67.00 to $74.00. Use it to complete monitoring, display, interface, or parallel-module requirements after confirming compatibility with the installed BMS model.

Model: BM21
Dimensions: 15 × 15 × 5 cm
Series: JKBMS Accessories
Weight: 5950 g
Volatage: 10-80V

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Selected configuration$67.00

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Product details

Supply scope and specifications

Key features

JKBMS-compatible accessory
Supports monitoring, display, communication, or parallel operation depending on model
Selected by target BMS model and connector type
Useful for service, installation, or system expansion

Included

Selected JKBMS accessory model
Standard connector or accessory parts supplied with that model
Basic product packing from the supplier

Not included

BMS main unit, inverter, battery cells, and external system hardware
Installation, firmware update, parameter setup, or compatibility debugging service
Any adapter, cable, or accessory not named in the selected product option

ModelBM21

SeriesJKBMS Accessories

OptionsChoose an option EJ-BM 21 with 1M Shielded Wire EJ-BM 21 with 3M Shielded Wire EJ-BM 21 with 6M Shielded Wire EJ-BM 21 with 8M Shielded Wire Clear

Weight5950 g

Dimensions15 × 15 × 5 cm

Volatage10-80V

Current0-500A

Capacity0.1-9999Ah

Temperature-10 ~ 60℃

Reference sourceImported from public JKBMS shop listing on 2026-07-02

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