HiLetgo CN3065 Mini Solar LiPo Charger Board – 2-Pack (USB & Solar Charging Module)

Overview

The HiLetgo CN3065 Mini Solar LiPo Charger Board is a compact, dual-pack charging solution designed to power a single LiPo cell from a small solar source or USB port. Its tiny footprint (2 cm by 4 cm) makes it ideal for portable projects, outdoor experiments, or compact enclosures where space is at a premium. The board balances simplicity with practical safety features, helping makers extend the life of their polymer lithium ion cells without a bulky charger setup.

What it is and how it works

Each CN3065 module is built around a dedicated LiPo charge management chip. The device accepts a solar input in the 4.4 to 6 V range and delivers a controlled charge current up to 500 mA. You connect the solar panel to one side and the LiPo battery to the other; the load is intended to be connected in parallel with the battery. A battery status indicator shows red while charging and green when the cell is full, giving you a quick visual cue during field use. You can also recharge via USB using the Micro USB port, enabling flexible charging options when sunlight is scarce.

The package includes two CN3065 modules, offering a convenient pair for multi-project setups or testing different configurations. Each board features practical connectors (2-pin JST or PH2.0) for straightforward wiring, and a built-in short circuit protection mechanism to help guard against accidental miswiring or panel fluctuations. The combination of solar compatibility, USB charging, and a compact form factor makes this kit a flexible option for hobbyists and makers who value portability and ease of assembly.

Key benefits for your projects

• Small, portable charger that fits tight spaces and DIY enclosures
• Parallel charging compatibility with a single LiPo cell
• Solar input range of 4.4–6 V plus USB charging via Micro USB
• Standard 2-pin JST/PH2.0 connectors for quick wiring
• Visible battery status indicators for quick charge progress checks

• Reliable safety with short circuit protection
• Two modules per kit for testing or tandem use
• Simple setup: plug in your solar panel, then connect the battery
• Designed for hobbyist and DIY outdoor applications

Usage tips and notes

Plan for modest charging currents by respecting the LiPo’s capacity rating. The maximum recommended input is 6 V, with a default charge current of up to 500 mA. For best results, use a solar source capable of maintaining a steady voltage within the specified range. When sunlight is strong, the charger can push through more current, but always monitor the battery to avoid overcharging beyond its capacity.

To get started, connect your solar panel to the input side, attach the LiPo to the output side, and observe the indicators. If you need a second project or a backup charger, the 2-pack keeps a spare module handy without adding bulk to your kit.

What you get

• 2 x CN3065 Solar LiPo Charger Modules
• Includes basic charging management for a single LiPo cell
• 2-pin JST/PH2.0 connectors for easy wiring