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Know before you buy
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4S–20S LiFePO4 · 12V–60V packs
Fits 12V, 24V, 36V, 48V and 60V LiFePO4 packs.
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40A continuous · 70A OCP · 640A SCP
Rated 40A continuous; 70A and 640A are protection trip points.
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XJBMS Bluetooth + RS485 (UART)
Monitor voltage, current, SOC and temperature; link to an inverter or controller.
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NTC + passive cell balancing
Keeps cells balanced and guards against overheating.
Features that make it useful
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Overcharge · over-discharge · OC · SC · temp guards
Several layers of protection for your pack.
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340+ onboard data records
Review fault history and diagnostics.
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Solar · EV · UPS · off-grid inverter use cases
Suits solar, EV, UPS and off-grid inverter packs.
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1-year warranty · pan-India shipping
980-970-9898 / care@amicikart.com.
How to use
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Check the pack is LiFePO4 with 4–20 cells in series before wiring
For LiFePO4 packs only.
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Keep the continuous load within 40A
70A and 640A are protection cut-offs, not continuous ratings.
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Pair XJBMS Bluetooth and/or RS485 as needed
Monitor the pack from your phone or inverter.
4S-20S 40A Smart BMS LiFePO4 NTC
amiciKart · 4–20S LiFePO4 · 40A cont · 70A OCP · 640A SCP · BT XJBMS · RS485 · NTC
Smart BMS board for 4S–20S LiFePO4 packs (12V–60V): 40A continuous charge/discharge, 70A overcurrent cutoff, 640A short-circuit protection, passive balancing, NTC temperature guard, XJBMS Bluetooth app, RS485 (UART), 340+ data records.
Sale price
Rs. 4,199.00
-31%
Regular price
Rs. 6,000.00
(MRP Inclusive of All Taxes)
Regular price
Rs. 4,199.00
Unit price
Increments of 1
Minimum of 1
Maximum of
4S–20S 40A Smart BMS for LiFePO4 Battery Pack | Cell Balancing with NTC Protection
Sale price
Rs. 4,199.00
Regular price
Rs. 6,000.00
(MRP Inclusive of All Taxes)
Regular price
Rs. 4,199.00
Unit price
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Specifications
| SKU | 1xBMS-4-20S-40A |
|---|---|
| Brand | amiciKart |
| Device class | Smart BMS protection board for LiFePO4 packs |
| Chemistry | LiFePO4 |
| Series count | 4S–20S (12V/24V/36V/48V/60V packs) |
| Continuous current | 40A charge & discharge |
| Protections | 70A overcurrent cutoff · 640A short-circuit · NTC temp · OC/OD/SC |
| Balancing | Automatic passive cell balancing |
| Comms | XJBMS Bluetooth app · RS485 (UART) |
| Data log | 340+ records |
| Warranty | 1 year; 30-day returns; support 980-970-9898 / care@amicikart.com |
Frequently asked questions
What series count and chemistry?
4S–20S LiFePO4 packs (12V–60V).
What continuous current?
40A continuous charge/discharge; 70A OCP and 640A SCP are protection figures.
Is this a 120A BMS?
No — it is rated 40A continuous.
Full Product Description
4S-20S 40A Smart BMS LiFePO4 NTC
Smart BMS board for LiFePO4 packs: 4 to 20 cells in series (12V/24V/36V/48V/60V LiFePO4 packs), 40A continuous charge/discharge, 70A overcurrent cutoff, 640A short-circuit response, passive cell balancing, NTC temperature protection, XJBMS Bluetooth app monitoring (V/I/SOC/temp), RS485 (UART) for inverter/controller integration, 340+ data records.
- Overcharge · over-discharge · OC · SC · temp guards: Several layers of protection.
- 340+ onboard data records: Review fault history and diagnostics.
- Solar · EV · UPS · off-grid inverter use: Built for LiFePO4 storage.
- 1-year warranty · pan-India shipping: 980-970-9898 / care@amicikart.com.