WBMS-SWLT 20S 60A

Specification: WBMS-SWLT

Current Rating: <100A

Balance Rating: 100~160 mA

FEATURES

Salient Features

Over/Under Voltage Protection

Over Current in Discharge (120A for 30s; 140A instant cut)

Over Current in Charge (120A for 30s; 140A instant cut)

Short Circuit Protection (30µs delay)

Short Circuit & Over Current Latch

Deep Discharge Prevention

17–20 cells (48–73V)

Up to 100A continuous current

Cell balancing: 100–160mA

Voltage accuracy ±3mV; Current accuracy ±1%

Predischarge for 3–6mF in 0.5 sec

Self‑consumption: ~13mA active; 0.15mA shutdown

CAN2.0B

Bluetooth Low Energy (BLE)

Proprietary CAN servicing tools

1 onboard MOSFET sensor

6 external cell sensors

Range: –10°C to 120°C, accuracy ±1°C

Buzzer & LED:

  • Thermal Runaway
  • MOSFET Failure
  • Open Wire
  • Short Circuit Latch
  • Over Current Latch
  • Insulation Failure

uSD Card (1 sec logging, 60 days)

EEPROM (90 sec logging, 31 days)

DIAGRAMS

Product Images

FAQs

Frequently Asked Questions

All models support multiple lithium‑ion cells. Depending on the variant, they can manage anywhere from 3 cells up to 32 cells, covering battery packs from about 48V up to 140V.

All models support multiple lithium‑ion cells. Depending on the variant, they can manage anywhere from 3 cells up to 32 cells, covering battery packs from about 48V up to 140V.

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Our Happy Customers

Ankit Mehra
Ankit Mehra
@ankitmehra
Webber’s BMS is truly ahead of the curve. Installation was seamless, and the support team was responsive and technically sound. Highly recommended for EV startups.
Radhika Sinha
Radhika Sinha
@sinharadhika
Reliable performance and excellent app interface. The real-time monitoring helped us optimize our fleet management significantly. A great product with room to grow on service speed.
Nikhil Patel
Nikhil Patel
@nikhilpatel
We’ve deployed over 500 units of their motor controller and BMS combo—zero failures so far. The quality is unmatched for the price. Proud to support a Make in India solution.
Shruti Deshmukh
Shruti Deshmukh
@deshmukshruti
Their charger integration with our existing systems was surprisingly smooth. The documentation is clear, and they delivered everything on time. Impressive engineering.
Vivek Iyer
Vivek Iyer
@vivekiyer
The ‘Webber Connect’ app is a game-changer. We now get instant diagnostics and analytics on battery health. This is what India’s EV industry needed.