Welcome to our store! 1, HIGH ACCURACY: This battery balance charger boasts super-high charging accuracy, with an error within 4.2V ± 10mV. Featuring a voltage display, no external adapter is needed, allowing you to check the voltage at any time. 2, MULTIPLE PROTECTIONS: This battery lithium lipo balance charger has built-in overcurrent, overvoltage, over-temperature, and short-circuit protection modules to ensure stable current and protect your battery. 3, ENERGY SAVING: This battery lithium balance charger uses an advanced microprocessor and professional processing software. Its newly designed architecture and algorithm balance without needing to discharge, saving energy. 4, APPLICABLE OBJECTS: This battery lipo balance charger can charge 2S, 3S, and 4S batteries (7.4V, 11.1V, 14.8V), but only one type of battery can be inserted at a time. Simple to operate, the charging process is completed in one step. 5, EASY TO USE: When not charging, you can directly insert the lithium battery balance connector to check the remaining voltage of the battery, making it easy to use. It also features an automatic repair function for older batteries. Item Type: Battery Lithium Lipo Balance Charger Color: Black Material: Aluminum Alloy, Electronic Components Input Voltage: DC 9‑16V (≥16W) Charging Current: 800mA Balance Current: 500mA Accuracy: 4.2V ±10mV Operating Temperature: ‑20‑45OC Input Power: ≥30W Maximum Charging Power: 25W Product Size: Approx. 81x50x20 mm / 3.2x2.0x0.8 in Support Battery Type: for 2-4S lithium-ion batteries or lithium polymer batteries Suitable for: Remote control toys, model airplanes, model cars, model boats, and other batteries Package Includes: 1 x Balance Charger 1 x Charging Cable