Specification: Model: GW-24S4EB 24 strings 4A Applicable number of strings: 10-24S Applicable battery type: NCM/LFP/LTO (ternary/lithium iron/lithium titanate) fully compatible Applicable number of strings in the power supply range: The minimum total voltage of the battery pack is 30V, the recommended value: ternary battery 10 strings, iron-lithium batteries 12 strings, LTO batteries 20 strings Single voltage working range: 1.0 - 4.5V Voltage equalization accuracy: 1mv (voltage measurement accuracy), 1mv (voltage equalization accuracy), this product is calibrated by for Keithley DMM7510 Equalization method: Equalization structure flying capacitor method, combined with point-to-point energy fer algorithm for high-efficiency equalization. Balance current: APP custom setting: 1-4A, due to the use of constant current and constant voltage technology, the balance current has to do with the battery voltage difference. Drop detection: Support Under-voltage protection sleep voltage: Under-voltage sleep voltage can be customized by APP: 1.5-4.2V Quiescent operating current: 10mA for balance off, 25mA for balance on Working environment temperature: -20 degrees to +55 degrees External power supply: No external power supply is required, and the entire group is balanced by relying on the internal energy fer of the battery Product size: (L X W X T) 140 x 128 x 22mm Color: Black Material: plastic Package Contents: 1 x Lithium Battery Balancer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.