Celestron PowerTank - Gsm lader

The PowerTank Lithium keeps the charge going for the astronomer on the go. The Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries.\n\n- The LiFePO4 has an un-recharged shelf life of 10 years compared to 3 years for the Lithium Iron and 6-9 months for a Sealed Lead-Acid battery.\n- The battery performance of the PowerTank Lithium degrades at a much slower pace than other chemistries.\n- The LiFePO4 can be charged and discharged 2000 times compared to only 500 for a Lithium Iron battery and 300 for sealed lead-acid designs.\n- The batteries will last as long as the telescope you use it with!\n- The LiFePO4 uses phosphates instead of environmentally hazardous elements like cobalt or lead commonly found in other rechargeable batteries.\n- Can withstand higher temperatures than lithium-iron designs and will not be a fire danger if accidentally punctured.\n\nThis combined with it’s rugged design make it the perfect outdoor power supply.\n\nKeep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices as active as you are with PowerTank Lithium—the ideal outdoor portable-charging solution for your electronic gear.