Overview
The LiitoKala 4S-12V100A Smart BMS is a Bluetooth-enabled battery management system designed for 4S (12V) LiFePO4 battery packs. It integrates real-time monitoring, adjustable protection parameters, and intelligent balancing to ensure safe and efficient power delivery for high-load applications such as solar systems, energy storage, and electric vehicles.
Main Features
- Bluetooth connectivity for real-time mobile monitoring via APP
- Same-port charge and discharge design simplifies wiring and installation
- Passive balancing maintains equal voltage across all cells, extending pack life
- Supports up to 100A continuous discharge current, suitable for high-power loads
- Customizable protection parameters (overcharge, overdischarge, overcurrent, temperature) through mobile APP
- Data logging and diagnostic functions for performance tracking and maintenance
- Temperature and current sensors for real-time safety control
- Compact PCB design with high-quality MOSFETs and aluminum heat dissipation
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | 4S-12V100A (Bluetooth) |
| Type | Smart BMS for LiFePO4 |
| Nominal Voltage | 12V (4S × 3.2V) |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Continuous Discharge Current | 100A |
| Continuous Charge Current | 50A |
| Balance Type | Passive Equalization |
| Charging / Discharging | Same Port |
| Communication | Bluetooth (Mobile APP + UART) |
| Protection Functions | Overcharge, Overdischarge, Overcurrent, Short Circuit, Temperature |
| Adjustable Parameters | Via Bluetooth APP |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | 23°C |
| Compatibility | 4S LiFePO4 12V battery packs |
| Dimensions | Compact high-current PCB with aluminum heat sink |
| Applications | Solar power, RV, e-bike, UPS, marine systems |
Applications
Primary Uses:
The 4S-12V100A Smart BMS is designed for 12V LiFePO4 battery packs used in solar energy systems, RVs, and off-grid power units, where safety and long-term performance are critical.
Extended Benefits:
Its Bluetooth-enabled monitoring allows users to view real-time voltage, current, temperature, and state of charge (SOC) directly from a smartphone. Perfect for energy storage setups, marine batteries, and mobile applications.
Compatibility / Upgrade:
Fully compatible with LiFePO4 3.2V cells in 4S configuration. The integrated same-port design simplifies installation for users upgrading from traditional BMS systems.
Product FAQ
What makes this BMS “smart”?
The built-in Bluetooth module enables wireless monitoring and adjustment of protection parameters through a mobile APP.
What battery type does this BMS support?
It supports 4S LiFePO4 (12V) battery packs, not suitable for Li-ion or NCM cells.
What is the maximum discharge current?
The BMS supports up to 100A continuous discharge, ideal for high-load devices such as inverters and motors.
Does it support balancing?
Yes, it features passive cell balancing to maintain uniform voltage across all cells.
How does Bluetooth monitoring work?
Simply connect via the “RBT BMS” APP to view battery status, adjust protection settings, and access detailed historical data wirelessly.
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