The lithium battery 18650-3S2P is a lithium-ion battery pack of different voltage which voltage varies from 12V, 24V, 36V and up; As a manufacturer SUM Electronics can apply the desired capacity based on customer requirements. Our motto: Artisan Spirit, Refine Production,unchangeable Credibility, Sincerest Service. 18650-3S2P battery pack is designed by SUM Electronics to be used on consumer electronics such as portable hair dryer. SUM Electronics is specialized in mass customization of lithium batteries for customers based on the desired voltage and capacity. I/ Products specs Model 18650-3S2P Dimensions 18*36*132mm/18*36*66mm Capacity 5200mAh Voltage 12V Certifications CEROHSULFCCKCIEC62133CQCUN38.3MSDS FAQ 1-Q/ What is the cut-off voltage of a lithium battery? A/ Based on your product requirements, the battery can be configured accordingly. 2-Q/Can a lithium battery explode? A/ Normally not, thanks to the protection circuit and being memoryless 3-Q/ What is the reason for the swelling of a lithium battery? A/ In a case the skin of the battery is damaged, it will cause the air to go into the battery, so it will swell up. 4-Q/ Whats the life cycle of a lithium battery? A/ The battery can be charged up to 500 times with still 80% of energy left in. 5-Q/ What is the storage temperature of a lithium battery? A/ 0 to 45 degrees 6What is a lithium polymer battery? Lithium-polymer battery is a type of lithium-ion battery, also known as soft-pack battery. 7Is it possible to notice a problem on a polymer lithium battery just by looking at the appearance? Yes, if there is no noticeable flaw, cracks, rust, leakage or other defects then the battery is in fine state