3.7V 200 mAH (Lithium Polymer) Lipo Rechargeable Battery Model 

The batteries come with or without random 2-pin Connector.

Note:- These batteries don't have protection circuitry inbuilt. Use a separate protection circuitry for protection.

How to Identify Size?
In the 6-digit model number, the first two numbers represent Thickness, middle two numbers represent Width and the last two numbers represent Length.
For Example, the size of 402525 is 4.0mm(Thickness) X 25mm(Width) X 25mm(Length)

NOTE: We don't guarantee the accuracy of the size mentioned. Battery size may vary up to ~1mm with every lot. Print on the battery may also vary with every lot.