Upgrade your energy game and throw away your charging box for good with STRIKE BATTERIES 18650 Rechargeable Battery 2pack, boasting a powerful 8100mWh energy in each battery. These Li-Ion batteries are designed to deliver long-lasting constant voltage to your all your devices, and the onboard battery management system ensures they operate efficiently and safely without ever leaking or self-draining. Each battery has a life cycle of up to 1200 charges, and are 3.7V, which eradicates the low voltage issue of traditional NiMH rechargeable batteries. The convenient USB-C port on board every battery allows recharging from any USB-C cable, or with the included multi-head charging cable. Get rid of your battery charging boxes forever, and let STRIKE Batteries power up your electronics without the need for frequent replacements. Charge them at home, in the office, in the car, or even when you are out camping through a USB solar array. USB-C fast charging means you'll be up and running in around 2.5 hours, plus with a 1-year manufacturer warranty, you can trust in the quality and performance of this 18650 Rechargeable Battery 2-pack. www.strikebatteries.com.au