Function: 1. HIGHLY COMPATIBLE WITHOUT FALLING: the battery is highly compatible with the adapter, does not fall or shake during use, safe and reliable 2. EASY INSTALLATION: One-piece burr-free trim, smooth surface and smooth installation 3. ENSURE SAFETY: There are 30 amp fuses on the positive and negative poles of the adapter to prevent excessive current from damaging the battery and power equipment 4. COMPATIBLE MODELS: Can be used with Ryobi One + 18V Lithium Ion battery and CD nickel battery. Included models for RB18L50, BPL1820, BPL 1820G, BPL 1815, BPL 18151, P102, P103 P104, P105, P106, P107, P108, P109 5. MULTIPLE USES: The battery adapter can be used to upgrade RC toys, DIY robots, etc., useful and practical Specification: Item Type: Battery Adapter Voltage: 18V Material: ABS Wire Thickness: 14AWG Compatible Battery: For Ryobi One + 18VB Lithium Ion Battery and CD Nickel Battery Package List: 1 x battery adapter 2 x fuse plug