1Lithium battery protection board, deeply waterproof, safer and more dependable to use. 2Adopt surrounding aluminum alloy heat dissipation, greatly increases the cooling speed, makes the temperature rise lower. 3With overcharge protection, overdischarge protection, short circuit protection, temperature control protection and balances 430A discharge current, and the discharge overcurrent protection value is 35 times of continuous current. 5Manufactured according to the original production specifications, in line with strict quality standards, long service life. Condition: 100% Brand New Item Type: Lithium Battery Protection Board Material: Aluminum Alloy Color: As picture shown Model: 3.7V 14S-17S universal 30A Discharge Current: 30A Discharge Overcurrent Protection Value: 3-5 times of continuous current Main Circuit Conduction Internal Resistance:1 x Lithium Battery Protection Board1.Theprotectionboardcanbeconnectedonlyafterthesignalsamplingwiringiscorrect,otherwisetheprotectionboardmaybedamaged. 2.Thetemperaturedetectionline(TDS)cannotbeconnected,whichmaycauseabnormaloutput. 3.Ifyouproduce16Sbatteries,pleaseshorttheB16+B17+samplingline. 4.Donotopentheproduct.