NICHE Smart Battery Charger Maintainer Battery Charger Specifications Input AC cable is 6 feet Output cable is 6 feet Soldered clips are 3 inches long Charger Display Status If the charger is connected incorrectly and there is reverse polarity or a short circuit is detected, the battery voltage or charging current indicator (2 on diagram) will display “Err”. Simultaneously the error indicator (5 on diagram) will be displayed, and a warning alarm will sound until the clips are disconnected. LED Battery Status Indicator If the battery charger is connected correctly, the LCD panel will turn on and display 0.0V. The battery charging indicator includes three parts, the clips, the straight/wave line and the battery symbol. As the LCD display panel shows 0.0V, the battery indicator will also display the clamps, the straight line only, and the battery symbol. Battery Charger Symbols The voltage/amperage unit indicator will display depending on the setting. If the charge button on the control panel is pressed, the LCD screen will display the output current that is charging the battery. During charging the clips will remain on the display, the straight line will flash, the battery symbol will flash, and the battery bars will increase as the voltage goes up. If the battery voltage detected is below 7.3V, "LO" will be displayed on the battery voltage or charging current indicatorand a warning alarm will sound. NICHE 750mA Fully-Automatic Smart Battery Charger 12V Trickle Maintainer NICHE 1-AMP Fully-Automatic LCD Smart Battery Charger 12-volt Trickle NICHE Smart Lithium Battery Charger Maintainer 1.5A 12V Li-ion LiPo LiFePo4 NICHE Smart Battery Charger Maintainer Automatic Trickle 12V/24V 15A/7.5A NICHE 20 Amp Smart Battery Charger/Jump Starter all 12-volt AGM GEL Lead-Acid Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 105 4.6 out of 5 stars 40 4.9 out of 5 stars 6 4.0 out of 5 stars 5 4.2 out of 5 stars 8 Price $27.95$27.95 $28.95$28.95 — no data $77.95$77.95 $99.95$99.95 Input Voltage 100-240V AC 100-240V AC, 50/60Hz 100-240V AC, 50/60Hz 110-120V AC or 220-240VAC , 50Hz 110-120V AC or 220-240VAC , 60Hz Output Voltage 6V/12V 6V/12V (auto-select) 12V 12V/24V (auto-select) 12V Efficiency 80% >80% >80% >75% >75% Charging voltage 14V±0.2V for 12V battery, 7.2V ±0.2V for 6V battery 14.0V±0.2V / 7.0V±0.2V 12.6V±0.2V for 12V Li-ion battery / 12.6V±0.2V for 12V LiPo battery / 14.6V±0.2V for 12V LiFePo4 battery MODE in Normal Temperaure 12V/14.3V±0.2V; 24V/28.6V±0.2V / MODE in Cold Temperaure 12V/14.7V±0.2V; 24V/29.4V±0.2V MODE in Normal Temperaure 14.3V±0.2V / MODE in Cold Temperaure 14.7V±0.2V Charging Current 0.75-1A 0.75-1A 1.5 A 15A (max) for 12V; 7.5A for 24V 2A/5A/10A/20A, 50A engine start Activated Voltage 4V 3V for 6V battery, 7.3V for 12V battery 7.3V 4.2V for 12V battery, 16.5V for 24V battery 7.3V Back Drain Current <5mA <5mA <5mA <5mA <5mA Environment Temp -10°C to +40°C -10°C to +40°C -10°C to +40°C -20°C to +50°C -20°C to +50°C Battery Types Lead-acid batteries (WET, MF, AGM and GEL) Lead-acid batteries (WET, MF, AGM and GEL) Li-ion, LiPo, LiFePo4 Lead acid-batteries (WET, MF, AGM and GEL) Lead acid-batteries (WET, MF, AGM and GEL) Ingress Protection IP20 IP65 IP65 IP20 IP20