Lipo Battery Power Level Tester & Alarm to Indicate Low Power

A great and neat tool to have. Always keep your lipo charged, and when it is low power or running weak stop using it to recharge. Help prevent damage to your expensive LIPO battery and prolong it's battery life by never letting the voltage drop too low. Great support device for any LIPO pack.Purpose and Features Can be used for 3.7V (1S Pack), 7.4V (2S pack), or 11.1V (3S pack). Red LED will flash when cell is below 3.3V and an Alarm will sound when cell is below 3.0V indicating the Lipo Battery pack should be recharged. With 2.5mm pin spacing, it works with 95% of the lipos on the market.Specification Dimention37mm x 21mm x 10mm Weight0.2 oz (5 g)Caution Never charge lipo battery in a flammable surface ALWAYS monitor your battery when it is being charged. Use only lipoly battery charger to charge a lipoly battery. Discounted at only: US$ 9.99