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Product Information
Spare power for a pocket-sized dive light should never be an afterthought. This Xtar 18650 lithium-ion cell, supplied by SeaLife as part number SL9823, delivers a true 4000mAh at 3.6 volts - the capacity the Sea Dragon Mini 600, 650, 900, 1000, 1200, 1300, and 1600 dive lights are designed around - so a charged spare in your save-a-dive kit turns into a full second dive's worth of light instead of a dim finish. It also works in other dive lights and devices built for 18650 cells.
The cell carries a built-in overcharge and over-discharge protection circuit plus short-circuit protection, and supports up to 10A of discharge current, comfortably more than a mini dive light draws at full power. At 50 grams and standard 18650 dimensions of 18.5mm x 68.5mm, it adds almost nothing to a travel kit. Recharge it with SeaLife's Xtar Mini USB charger or any quality 18650 charger. Lithium batteries ship by ground only - no air transport.
- True 4000mAh capacity at 3.6V - among the highest available in the 18650 format
- Drop-in power for Sea Dragon Mini 600, 650, 900, 1000, 1200, 1300, and 1600 dive lights
- Built-in overcharge and over-discharge protection circuit for long service life
- Short-circuit protection for safe handling and storage
- 10A maximum discharge current
- Lightweight at 50 grams; standard 18650 size (18.5mm x 68.5mm)
- Also fits other brands' dive lights and devices that accept 18650 cells
| Brand | SeaLife |
| Model | Xtar 4000mAh 18650 Li-Ion Battery |
| Part Number | SL9823 |
| Battery Type | Rechargeable 18650 lithium-ion |
| Voltage | 3.6V |
| Capacity | 4000mAh |
| Maximum Discharge Current | 10A |
| Protection | Overcharge, over-discharge, and short-circuit protection |
| Dimensions | 18.5mm x 68.5mm |
| Weight | 50g (1.8 oz) |
| Compatible Lights | Sea Dragon Mini 600, 650, 900, 1000, 1200, 1300, and 1600; other 18650-powered dive lights |
| Shipping | Ground shipping only (lithium battery - no air transport) |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
