Goal Zero Rechargeable batteries reduce your impact compared to using disposable AA batteries. Charge them up before your next trip. . Rechargeable Nickel Metal Hydride batteries. Pack includes four batteries. For use with Guide 10 and can be recharged with Nomad 7. Lightweight and affordable. Approx. 500 1000 cycles. Due to federal shipping restrictions regarding products containing lithium batteries, this product cannot be shipped to Canada, Hawaii, Alaska, Catalina Island, Puerto Rico, APO, FPO or international addresses. Thanks for your understanding.