LED
LCD
Product Description
The MH-X282 is a highly reliable, dual-slot universal automatic smart charger engineered specifically for charging 3.7V Lithium-Ion cylindrical cells. Designed with advanced safety monitoring, this compact charger features an integrated automatic cut-off mechanism that terminates power output as soon as the batteries reach full capacity, effectively protecting cells from overcharging and thermal runaway. Capable of charging two cells simultaneously or independently, it supplies a steady 450mA charging current per channel, making it ideal for maintaining high-drain components like 18650, 14500, and 16340 cells. For field technicians, automation developers, and hardware specialists, it provides an essential benchtop tool for keeping active testing power supplies fully charged.
Pinout / Layout Connections
The charger uses a simple plug-and-play architectural setup with spring-loaded dual-slot contacts:
AC Input Power Cable: Integrated multi-standard power cord designed to plug directly into standard electrical wall outlets (AC 100V – 240V).
Dual Independent Charging Slots:
Top Fixed Contact Terminals (+): The upper stationary metallic plates serve as the positive connection contacts.
Bottom Spring-Loaded Sliders (-): The movable, spring-tensioned lower slides accommodate various battery lengths and serve as the negative connection contacts.
Dual Status LED Display: Independent LED indicators situated above each slot to provide visual feedback on the state of charge for each inserted cell.
Applications
Battery Maintenance: Recharging 3.7V Li-ion batteries (18650, 14500, 16340, 26650) for testing rigs and industrial gear.
Prototyping & Development: Keeping lithium cells powered for portable microcontroller testing blocks, wireless IoT nodes, and mobile robotic bases.
Field Service Equipment: Recharging heavy-duty handheld instrumentation, wireless testing probes, and mobile thermal cameras.
Consumer Electronics: Convenient charging for tactical LED flashlights, vaporizers, and portable high-drain field tools.
Technical Specifications
| Parameter | Value / Specification |
| Model | MH-X282 |
| Input Voltage Range | AC 100 V to 240 V, 47/63 Hz |
| Output Charging Voltage | DC 4.2 V ($\pm 1\%$) |
| Charging Current | 450 mA per channel (dual slot independent) |
| Compatible Chemistries | 3.7V Lithium-Ion (Li-ion) |
| Supported Battery Sizes | 18650, 14500, 16340 (CR123A), 10440, 26650, 18500 |
| Protection Features | Overcharge protection with automatic termination (Auto-Stop) |
| Status Indicators | Red (Charging) / Green (Fully Charged or Empty Slot) |
