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Small rectangular lithium battery pack, dark casing, 43.3 by 31.3 by 7.1mm, 44.0g

Estry

Estry DC2000 standard battery 1000mAh 3.7V

SKU CH-S9T0-MGAR0 MPN DC2000

Replacement lithium battery for SeaLife DC2000 cameras, 1000mAh at 3.7V with overcharge and short-circuit protection

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity1,000 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • 1000mAh capacity powers SeaLife DC2000 cameras longer
  • 7V lithium chemistry matches original SL747 specifications
  • 3 x 31.3 x 7.1mm form factor fits battery compartment exactly
  • Overcharge, over-discharge and short-circuit protection extends cell life
  • ISO9001, CE, RoHS and UN38.3 certified for safety compliance

Direct Replacement for SeaLife Cameras

The Estry DC2000 standard battery is built to match the original specifications for SeaLife DC2000 and DC2000 Pro cameras. It uses a lithium cell rated at 3.7V with a nominal capacity of 1000mAh. Integrated protection guards against overcharge, over-discharge, over-voltage and short circuits.

Upgrade from Depleted Original Cells

This pack replaces an exhausted SL747 or SL7404 battery that no longer holds a useful charge. The jump is worth it when dive time is cut short by rapid voltage sag or when the camera refuses to power on. It restores the original run-time without modifying the housing or charger.

Limited to Single-Cell 3.7V Lithium Format

The 43.3 x 31.3 x 7.1mm form factor fits only the dedicated SeaLife battery compartment. It cannot be used in devices requiring a different voltage, a multi-cell pack or a larger capacity such as 1050mAh. The 3.89Wh energy rating also restricts it to applications within that power envelope.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $13.99
Pricier than about 63% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameSeaLife
Product typeBatteries
Power
Battery typeLithium
Battery capacity1,000 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

What are the exact dimensions of the Estry DC2000 battery to confirm it fits my SeaLife camera?

The battery measures 43.3 x 31.3 x 7.1 mm and weighs 44.0 g, matching the original SL747 and SL7404 form factor for the DC2000 and DC2000 Pro.

How do I install the battery correctly, and what common mistake should I avoid?

Insert the pack with the contacts facing the camera's terminals; the frequent error is forcing it in reversed, which prevents the latch from engaging and risks pin damage.

When will the Estry DC2000 battery need replacement, and what signals the end of its life?

The 1000 mAh lithium cell holds 3.89 Wh; replace it when run-time drops noticeably or the pack no longer reaches full charge after normal use.

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