Battery parameters: Condition: New Model: 36500 LiFePo4 battery Applications: Power rechargeable battery (electric vehicle batteries, flashlight, Motorcycles start battery pack, model and field power supplies.DIY power pack,etc .) Monomer 32650 lithium iron phosphate battery Rated voltage: 3.2V Battery capacity: 10000mah Battery size: 32 * 32 * 75mm Built-in 3A protection board Two 32650 lithium iron phosphate batteries Rated voltage: 3.2V Battery capacity: 20000mah Battery size: 64 * 32 * 75mm Built-in 5A protection board Three 32650 lithium iron phosphate batteries Rated voltage: 3.2V Battery capacity: 30000 mah Battery size: 96 * 32 * 75mm Built-in 5A protection board Packing: 1X 3.2v battery (as your choosed) Precautions for use 1. Please charge with a dedicated lithium battery charger Do not invert the positive and negative electrodes; It is prohibited to directly connect the positive and negative electrodes with metal for short circuit; 4. It is strictly prohibited to immerse the battery in water; 5. It is strictly prohibited to drop, impact, squeeze, or puncture the battery; If the battery is not used for 3 months, please place it fully charged. When not in use, it should be placed Store in a cool, dry environment. Please Note: Communication is the best way to solve the problem. Your satisfaction is our top priority. We appreciate your positive feedback! We have always been committed to providing the best service and reliable products to every customer. However, accidents may occur at times, and we understand your concerns and setbacks. Please contact us to resolve the issue