Are you looking for another replacement battery? You don’t want to change the battery frequently, so our battery is your best choice! Our batteries are made of environment-friendly materials, rechargeable batteries, with strong recyclability, energy conservationand environmental protection. It can protect your device from damage during charging, and it is safer! – Compatible Model: Python * 7857P – Compatible Battery Part Number: * JFC301819 Product Specifications: Capacity: 70mAh Type: Li-Polymer Voltage: 3.7V Dimension: 18.5 x 16.4 x 3.8mm Weight: 27.0g Kindly Tips: 1. Before purchg, if you are not sure whether your device model matches the battery model, please ask customer service~ 2. If you have any questions about the product after purchg the product, please feel free to contact the customer service, and the customer service will give you a satisfactory solution within 24 hours!?Service Guarantee?The batteries in this store have a one-year quality guarantee, and free return and exchange within one year. Provide 100% satisfied customer service. ?Current protection?High quality replacement battery is avoid overcharge and overdischarge, overcurrent short circuit, safer. Protect your device from damage. ?Battery Parameters? – 3.7V/70mAh, Type: Li-Polymer, Rate: 0.26Wh, 18.5 x 16.4 x 3.8mm, Weight: 27.0g. ?Battery Model?Part Number: JFC301819. ?Applicable Model?Compatible With: 7857P,…(For other models, please see details page).