14/12/2024 - The new stock of 50 pieces ships in January 2025 due to batch preparation, 3D Printing of cases and we also need a small break in Christmas time. The Orders may be shipped before the expected dispatch dates mentioned below. Enjoy the Christmas Sale of 10% on this product till 24th December 2024.

• Black and Gold (RoHS): - 11 in stock - will dispatch on or before 10th January 2025
• Black and HASL Silver (RoHS): - 30 in stock - will dispatch on or before 16th January 2025
• Matte Black and HASL Silver (RoHS): - 9 in stock - will dispatch on or before 18th January 2025

05/12/2024 - The new upcoming stock is under RoHS Lead Free Assembly process. Cases are also getting ready. Stay tuned here and make sure to join the waitlist, so we can prepare a good stock for all.

04/12/2024 - As we proceed with the overtime-assembly of the product, we request you to place the order as soon as the stock refills. Stay tuned by joining the Waitlist.

03/12/2024 - We are out of stock again and we request you to patiently join the waitlist as we re-stock the product.

30/11/2024 - We are working on re-stocking the product with a new lot, as we assemble and test each board, you can join the Waitlist to get notified first when the stock is available for purchase.

28/11/2024 - We have re-stocked the product with Quantity of 10 as we ran the assembly line on the prompt response of getting Sold Out.

26/11/2024 - We got Out of Stock in just 20 Minutes. Thanks for that Overwhelming response. Please stay on the Waitlist as we prepare the next stock

The New Stock of 10 Pieces dated 25.11.2024 is Live for Purchase

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

This Tester is suitable for testing the Lithium-Ion batteries. But please make a note that you can neither charge nor Analyse LiFePo4 battery with this tester. Only use Discharge and IR Tester function for such chemistry cells.

Package Contents?

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