Spare Battery (21700) for SL20 Underwater Diving Light

Spare Battery (21700) for SL20 Underwater Diving Light

Keep your underwater lighting powered dive after dive with this Spare 21700 Battery for the SL20 Underwater Diving Light. Designed as a direct replacement or backup power source, this battery helps ensure consistent illumination for underwater photography and video, especially during extended dives or multi-dive days.

• Designed for SL20 Diving Light – Compatible with SL20 underwater video and photography lights.
• 21700 Battery Format – Provides reliable power capacity for stable light performance.
• Ideal Backup Power – Perfect as a spare battery to extend shooting time underwater.
• Supports Consistent Illumination – Helps maintain steady brightness throughout your dive.
• Essential Lighting Accessory – A practical addition for underwater photographers and videographers using the SL20 light.