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AJMRTC Lithium Charge Discharge Buck Module, 3.7V-4.2V Step Down to Stable 3V, Replace 2pcs Dry Batteries for Toys, Remote Controls, Wireless Mouse, Microcontroller, DIY Power Modification Board with
- - Integrated charge, discharge and step-down module, converts 3.7V~4.2V lithium battery to steady 3V output to replace two 1.5V dry cells
- - Built-in lithium battery protection, prevents overcharge, over-discharge, over-current and short circuit for safe operation
- - Ultra-low quiescent current design, suitable for low-power devices like wireless mouse, remote control and microcontroller circuits
- - Simple wiring for DIY modification, directly upgrade old devices originally powered by 2 dry batteries to rechargeable lithium power
- - Compact PCB size, easy to embed inside toys, remote controllers and small embedded electronic projects
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AJMRTC 3V lithium charge & discharge buck power module is designed to replace 2-series dry batteries (3V total) with a single 3.7V lithium cell. It accepts lithium battery input ranging from 3.7V to 4.2V and steps the voltage down to a constant 3V output, matching the power requirement of original 2 dry-battery equipment.
This all-in-one board integrates charging management, voltage buck conversion and multi-protection circuit. It safeguards lithium cells against overcharging, over-discharging, overcurrent and short circuit risks. Featuring ultra-low standby current, it minimizes power drain while devices are idle, perfect for low-power electronics.
Great for DIY modification of toys, infrared remote controls, wireless computer mice, and microcontroller development projects. Turn your disposable dry-battery gadgets into rechargeable lithium-powered devices easily.
- Brand: AJMRTC
- Function: Lithium Charge & Discharge Step-Down Power Module
- Battery Input: 3.7V Li-ion / Li-Po (3.7V~4.2V full charge range)
- Output Voltage: Fixed 3V
- Application: Replace 2 × 1.5V dry batteries
- Protection: Overcharge, Over-discharge, Over-current, Short Circuit Protection
- Quiescent Current: Ultra low standby consumption
- Compatible Device: Toy, Remote Control, Wireless Mouse, Microcontroller, Small Embedded Circuit
- Usage: DIY rechargeable power modification
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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