INTRODUCTION
PRODUCTS


SUM Electronics is a professional battery solution manufacturer and supplier, our major market is in Europe and China. Our motto: Artisan Spirit, Refine Production, unchangeable Credibility, Sincerest Service.

High quality, good performance, and secure rechargeable 25.6V lithium-ion battery pack.

Application fields: Wireless products. Instrumentation, robotic, Medical, business and Security equipment; Energy storage and emergency backup power systems, etc.

I/ Products specs
Model 18650
Dimensions 50.5*76.1*105.5mm
Capacity 4.5Ah
Voltage 25.6V
Certifications CE,�ROHS,�UL,�FCC,�KC,�IEC62133,�CQC,�UN38.3,�MSDS
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/ Whatâ??s 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
6,�What is a lithium polymer battery?
Lithium-polymer battery is a type of lithium-ion battery, also known as soft-pack battery.
7,�Is 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 a fine state