Lipol Battery has been making ultra thin li poly battery for more then 8 years. Now we can provide ultra thin Li Poly battery of 0.4 mm to 2.9 mm thick.Rich stock, small samples and large orders all available. Best price with high quality, add PCM,NTC and cables for free. These ultra thin li poly battery and ultra thin battery should be used for smart cards, smart labels,micro speakers ,medical equipment,tracking devices, portable sensors power cards, wearables devices and other applications that require battery storage in a very thin battery(limited space).