MakerFocus 3.7V 3000mAh LiPo Battery with Protection Board and JST 1.25 Plug for ESP32 LoRa Mesh Node T114
MakerFocus 3.7V 3000mAh LiPo Battery with Protection Board and JST 1.25 Plug for ESP32 LoRa Mesh Node T114
The MakerFocus 3.7V 3000mAh lithium polymer rechargeable battery is a single-cell (1S) power source designed for ESP32 development boards and other devices using a SH1.25-2 connector. It includes an integrated protection board, insulated rubber tape, and a JST 1.25 plug. With a capacity of 3000mAh, it provides extended run time for projects like the ESP32 LoRa V3/V4, Wireless Tracker, Mesh Node T114, and Mesh Node T096. The protection board guards against overcharge, over-discharge, and short circuits, but note that it can be damaged by sustained high currents beyond its rated limits.
What is the recommended charging current for this battery?
For best safety and longevity, charge at 0.6A (600mA). The maximum safe charging current is 1.5A. Similarly, the recommended discharge current is 0.6A, with a ceiling of 1.5A. Exceeding these values may permanently damage the protection board.
| Chemistry | Lithium Polymer (LiPo) |
| Voltage | 3.7V nominal (4.2V full charge) |
| Capacity | 3000mAh |
| Connector | JST 1.25 (compatible with SH1.25-2) |
| Protection | Overcharge, over-discharge, short circuit |
| Weight | ~48g |
Protection Board Details
The built-in PCB stops charging when the cell reaches 4.2V, preventing overcharge. When voltage drops to 3.0V, the board disconnects to avoid over-discharge. In case of a short circuit, it shuts off in milliseconds. However, these protections are not a guarantee—if the battery is shorted directly (bypassing the board), high current can still damage components. Always stay within the recommended current limits.
Compatible Devices
- ESP32 LoRa V3 / V4
- Wireless Tracker
- Mesh Node T114 / T096
- Any development board with a SH1.25-2 plug
Important Usage Notes
Do not exceed 1.5A charge or discharge current. The protection board can fail if subjected to continuous high current above its rating. Always charge in a safe area and avoid physical damage to the cell. The insulated rubber tape helps secure the connector but does not replace proper handling.
Frequently Asked Questions
Can I use this battery directly with an ESP32 without a separate voltage regulator?
Most ESP32 boards can run directly on 3.7V LiPo voltage (range ~3.0V-4.2V), but check your board's input tolerance. Many include an onboard regulator.
Does the protection board support balancing?
No, this is a single-cell (1S) battery, so balancing is not needed.
What is the physical size of the battery?
Exact dimensions are not specified, but typical 3000mAh LiPo pouches are roughly 65x35x8mm. Verify your enclosure space.