E&J BM21 Battery Monitor | LCD, Bluetooth & 500A Shunt
E&J BM21 Battery Monitor | LCD, Bluetooth & 500A Shunt
SKU:BMS-EJ-BM21-500
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- Australia-wide delivery
- Perth pickup & local support
- Warranty-backed products
Product details+
| Brand | E&J |
|---|---|
| Product type | Battery Monitors |
| SKU | BMS-EJ-BM21-500 |
| Condition | New |
See your battery status on a separate display
Add an easy-to-read LCD battery display to your caravan, 4WD or off-grid setup. The E&J BM21 uses a 500A shunt to measure charge and discharge current, with Bluetooth access through the Smart Battery Monitor app.
It is a useful optional upgrade when you want a fixed display, including on ATG lithium batteries that already provide Bluetooth monitoring.
Key features
- Displays battery state of charge, voltage, current and capacity
- Measures energy flowing into and out of the battery through the shunt
- LCD display and Bluetooth monitoring
- Suitable for compatible LiFePO4, lithium and lead-acid battery systems
What’s included
- BM21 LCD battery monitor
- 500A current shunt
- 5m display cable
Installation
Install and configure the shunt and monitor according to the supplied instructions. Main battery/shunt connection leads are sold separately and must match the terminal sizes and circuit current. The monitor does not replace your battery’s BMS or circuit protection.
Shop ATG lithium batteries · Ask about installation compatibility
Delivery & Perth Pickup
Delivery & Perth Pickup
Australia-wide free delivery is available on eligible orders over $20*. Perth pickup is also available. Bulky items and remote destinations may have additional conditions.
Warranty & Local Support
Warranty & Local Support
Products are backed by our Perth-based support team. Warranty periods vary by product; check the product description or contact us for confirmation.
Need Help Choosing?
Need Help Choosing?
Not sure whether this product suits your caravan, 4WD, solar, marine or off-grid setup? Contact Access 12 Volt Warehouse and our team will help confirm compatibility before you order.
