bluetooth speaker battery JBL Charge4

JBL Charge4 Battery  Factory wholesale Rechargeable speaker Lithium Battery for JBL Charge4 3.7V 7800mAh / 11.10Wh. Standard voltage same as original battery. Low resistance and energy saving, circulation increased by 30%. All battery we have ROHS, CE and FCC certifications, with 12 month warranty and responsible after-sales service. As a professional manufacturer over 10 years experience, Sunwind energy technology owns the brand of Liangmi involved in different...