The BMT PROG BATTERY CAPACITY TESTER (JS-C33) is a versatile and programmable battery power display and capacity monitoring module designed for accurate real-time monitoring of battery systems across a wide range of applications. Featuring a full-color LCD screen, this module provides clear visibility of key battery parameters including voltage, remaining capacity percentage, and optional temperature and alarm status, even in low-light or night-time conditions.
Designed as a universal battery monitoring instrument, the JS-C33 supports multiple battery chemistries out of the box, including Lithium-ion, Lead-acid, Lithium Iron Phosphate (LiFePO ), and Ni-MH batteries. Thanks to its open programming mode, the module can be customized to suit virtually any battery type or voltage curve, making it ideal for both standard and custom battery systems.
The module operates over a wide input voltage range of 10-100V, with built-in reverse polarity protection to ensure safe installation and operation. Its low-power design allows the display to automatically enter sleep mode after 10 seconds of inactivity, minimizing battery drain during long-term use.
With a simple snap-in mounting design, no screws are required, allowing fast installation, easy maintenance, and quick replacement. Optional features such as a buzzer alarm and battery temperature detection further enhance safety by providing early warnings for low capacity or abnormal operating conditions.
The BMT PROG BATTERY CAPACITY TESTER is supplied with a protective dustproof and splash-resistant front surface, making it suitable for use in vehicles, solar systems, backup power installations, portable equipment, and DIY energy projects.
Features
- Programmable battery capacity and voltage display module
- High-contrast color LCD screen with soft night backlight
- Displays battery voltage and remaining capacity (%)
- Supports multiple battery chemistries:
Lead-acid
Lithium-ion
Lithium Iron Phosphate (LiFePO )
Nickel Metal Hydride (Ni-MH) - Open programming mode for custom battery profiles
- Wide operating voltage range: 10-100V
- Built-in reverse polarity protection
- Low power consumption with automatic sleep after 10 seconds
- Low battery warning with flashing red indicator
- Optional buzzer alarm (selective assembly)
- Optional battery temperature detection (selective assembly)
- Tool-free snap-in installation (no screws required)
- Dustproof and splash-resistant front surface
- Standard connector for easy wiring and maintenance
Specifications
- Model: JS-C33
- Device Type: Programmable Battery Capacity Tester / Power Display Module
- Display Type: Color LCD
- Input Voltage Range: 10 - 100V DC
- Battery Types Supported (Default):
Lithium-ion
Lead-acid
LiFePO
Ni-MH - Display Parameters:
Battery Voltage
Remaining Capacity (%)
Temperature (optional) - Alarm Function: Low battery warning / buzzer (optional)
- Power Consumption: Low power, auto sleep enabled
- Protection: Reverse polarity protection
- Mounting Method: Snap-in buckle mount
- Packaging: Neutral packaging
- Environmental Protection: Dustproof / splash-resistant front
Typical Applications
- Battery capacity monitoring systems
- Solar power and energy storage systems
- Electric vehicles, scooters, and mobility devices
- UPS and backup battery systems
- Portable power stations
- DIY battery packs and energy projects
- Industrial and automotive battery monitoring
What's in the box
1 x BMT PROG BATTERY CAPACITY TESTER JS-C33 12V LCD Power Display Module
