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*The new stock of 5 Pieces dated 24.11.2024 is live for purchase.

What is it?

This is a SMART Battery Capacity Tester, designed to check the original capacity of the cell. This comes with an On-board ESP32-C3. This is the successor of the BATTERY CAPACITY TESTER V2.1

Why did you make it?

In recent years, the market has been flooded with low-cost batteries, many of which originate from unregulated manufacturers. A significant concern with these batteries, is the inaccurate labelling of capacity. Often, these batteries claim to have high capacities sometimes exceeding 10,000mAh at prices that seem too good to be true. In reality, many of these batteries fall far short of their advertised capacity, providing poor performance and posing potential safety risks due to overcharging or overheating.

For consumers and hobbyists who rely on batteries for DIY projects, RC models, portable electronics, or even solar power setups, it is essential to ensure that the batteries they purchase live up to their promised specifications. Unfortunately, distinguishing between a high-quality battery and a low-grade, falsely advertised one isn't always possible by appearance alone.

This is where our device Smart Multipurpose Battery Tester becomes crucial. It allows users to verify the capacity of the batteries they purchase, helping them avoid the pitfalls of using fake or low-quality batteries.

Earlier, I developed the Battery Capacity Tester V2.1, which was designed primarily for discharging batteries to measure their capacity. However, it lacked some essential features, encouraged the development of an upgraded version.

What makes it special?

The earlier version was designed solely to discharge the battery for capacity testing. However, in this version, users can both charge and discharge the battery, effectively turning the device into a battery charger as well.

The following are the major upgraded features compared to V2.1:

1. XIAO ESP32 Microcontroller
2. Integrated Charger Circuit
3. Compact SMD Current Sense Resistor
4. Onboard Battery Holder
5. Firmware Upgradation
6. Cutoff Voltage Setting
7. IR Testing

Package Contents?

• Fully Assembled Smart Battery Capacity Tester PCB (In Black + Gold Color)
• 3D Printed Case (Optional)
• No Batteries are Shipped (Due to International Norms)