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Specifications
- Brand Name: diymore
- Condition: New
- Type: Voltage Regulator
- Model Number: 18650 Battery Charge Shield Board V3
ESP32 ESP32S 18650 Battery Charge Shield Board V3 Micro USB Port Type-A USB 0.5A for Arduino Raspberry Pi WeMos Charger Module
Price history
- for 3 month
- for half a year
- Requires Alitools extension
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Customer Reviews
Delivered relative quickly, Works as described, only the charge current is a bit more than described -- 2 A. Problem is with things, which are not described. During charging, the output drops from 5 V to 4,3 V. By default, full charged battery discharges within circa 24 hod without any load. And efficiency is too low, full charge gives 2800 mAh, but full discharge gives only 1500 mAh. Nice toy, but a toy only.
So I did not receive the boards I ordered. These boards have a number of changes from those advertised. It has a USB C as well as a micro usb input. It does not have a physical on-off switch. It has a push button who's only job is to show the battery state with the LEDs. It has 4 LEDs to show battery charge and charging state. There are 2 major drawbacks. The first is that the 4 LEDs and charging circuit take just over 100mA of power. This is an issue if you are intending to charge this with a small solar panel. 100mA means that a bigger panel is needed. This is not an issue if you are charging via the mains. The second and worse issue is that these will drain a 2500mAh 18650 in a day with no load connected. The internal circuitry must be drawing a big current. These charge shield boards are absolutely no use for a project where you want to run something for more than a day. Even then as you have no ability to turn the board off they are useful for same day use only.