This small, palm-sized battery power meter has a small display that shows off how much juice is left in your single Lithium-Ion/Polymer rechargeable battery. The colour display has four levels of power indication once battery capacity becomes 100%, 75%, 50%, and 25%. When power is below 25%, only the red battery frame lights up. The design is pretty basic, it's just doing basic voltage comparisons, and of course, it will drain any battery it is connected to - but for beginners, this is a pretty easy way to check single 3.7V/4.2V Lithium Ion or Lipoly batteries. Comes with two bare wire ends - connect the black wire to ground and the red wire to positive - check your battery for the polarity because batteries may have a different connector setup. Note: PCB may come in green or blue. Battery not included. Technical Details * Product Dimensions: 47.6mm x 28.5mm x 22.0mm * Product Weight: 13.0g https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2023-03-07 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2023-12-27 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2024-09-18 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2024-11-29 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2024-11-30 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2025-04-09 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2025-08-05 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2025-11-28 https://elecena.pl/product/22727128/single-li-ion-lipoly-battery-power-meter 2025-11-29