HomeAll ProductsDNT The 18650 Flat Top Battery is compatible with the ZULUS HD and Hydra and TNCThis 18650 Flat Top Battery is compatible with the ZULUS HD, Hydra, and TNC225R models.DNT The 18650 Flat Top Battery is compatible with the ZULUS HD and Hydra and TNC$10.00PriceQuantity*2 week lead time expected Pre-Order