The Hahnel HL-X1 Battery is an alternative to the Sony NP-BX1 battery, as utilised in the Sony RX1/R, RX100/II/III/IV, HX400, HX300, HX60, HX50, WX300, AS15 digital camera.

Only the most modern battery technology is used in hahnel Lithium Ion batteries. They are environmentally friendly, feature a very high energy density and have no memory effect. The batteries are much smaller and lighter than any other rechargeable battery with similar capacity. All batteries are produced to the highest quality standards. A built-in microprocessor safeguards the cells by limiting maximum voltage and by protecting against deep discharge, short circuit and overload.