KC certification 100% quality lithium battery 503040S 300mAh 3.7v charger li ion rechargeable

1.We offer OEM&ODM service, we can customize battery size,according to customers'requirement;

2.Best price:We have our own factory,this enables us to provide ;

better support and ensure the most advanced and competitively-priced products;

3.All of your inquiries or emails will be replied within 12 hours;

4.A professional engineering team to offer best solution to you;

5.Fast delivery,professional and quality 100% QC inspection.