Yes, Dive Gear Express continues to offer an expedition quality alkaline disposable battery powered backup light, although all our other backup lights are now powered with lithium-ion rechargeable batteries. Only GUE equipment requirements still say backup lights should be powered by alkaline batteries.

Previous generation halogen and HID bulb primary lights were powered by unreliable NiCad, NiMH or lithium chemistry rechargeable batteries and best practice was to dive carrying two backup lights, both powered with non-rechargeable alkaline chemistry batteries. Today, both high-power LED and next generation lithium-ion rechargeable battery technologies are now well established for mission critical applications. Thus, NSS Cave Diving Section standards were updated in 2020 and no longer require alkaline batteries for backup lights in their training program equipment requirements. TDI and IANTD training standards have been similarly updated to delete reference to battery requirements.