QJFCare Waterproof Battery Capacity Indicator Review

【 3 in 1 battery voltage meter】 - New alarm function, when the battery capacity is lower 20%, the screen display will flash to alarm.With a switched function button to choose the battery capacity, real-time voltage or turn off;just connected to the battery,powered by tested circuit.(Note: package only include 1 battery meter!). 【Wide Working Voltage Range】 - This battery monitor can tolerate widest working voltage range (DC12V-84V).Can be adjusted to 12V/24V/36V/48V/60V/72V/84V, according to the battery voltage.Reverse Polarity Protection: Simple connection with reverse protection, won't burn if connect reversely. 【Suitable Battery Types 】- The battery detector is suitable for lithium batteries and lead-acid batteries, such as Ternary lithium batteries, polymer batteries, lithium-ion batteries, storage batteries. Note: it cannot be used for Lithium Iron Phosphate batteries, 1-2 Li batteries in series and over 15 Li batteries in series. 【PVC Waterproof Screen and Bright LCD Display】 - the battery detector shows the results through the clear LCD display with PVC waterproof screen poterctor and bright BLUE back-light. Less 50% power to loss than the others. What's more, there's a turn off button for it. 【Multifunctional application】 - suitable for (Yamaha) golf cart, RV, marine, boat, (EZGO) club car, motorcycle, car, bike, ebike, scooter, truck, vehicle, jet ski, forklift.