Lightweight 3.7v Standard Li Polymer Battery 9000mah+ - 50 Grams, 110 Volt | Built-in Protection Circuit, Low Thermal Runaway, Excellent Discharge Rate

With built-in protection circuit board for these batteries to prevent over-current, over-charge and discharge, short-circuit, and temperature control. This 9000mAh+ Lithium Polymer Battery is a revolutionary power source that provides safety, security, and efficiency. With these features, you can always guarantee yourselves to remain safe wherever you go. They have a low thermal runaway and tend to stay cool, so they can endure more charging cycles over time. They have an excellent discharge rate and can be recharged quickly, making them ideal for cordless tools where there's no time to spare. They are different from other lithium-ion batteries in that they produce little to no gas when recharged, and they do not require the use of a separator. Our 50 gram Lithium polymer batteries are safe, lightweight, and offer a long cycle life. We have a large stock of finished lithium batteries, you dona t need to customize them, you can find all the batteries you want here.