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Flat rectangular lithium battery pack with two wire leads, labelled 1200mAh 3.7V

Estry

Estry Replacement Battery 1200mAh 3.7V for Arctis 3 1 7 7P AEC503759

SKU CH-9TQT-04F2M

Lithium replacement cell restores 1200 mAh capacity to Arctis 1, 3, 7 and 7P headsets

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity1200mAh
  • Battery Voltage3.7
  • Exact-fit replacement for Arctis 3, 1, 7 and 7P
  • 1200 mAh lithium cell delivers 4.44 Wh runtime
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 60.0 x 36.9 x 5.0 mm design weighs only 48.8 g

Compatible Headset Models

This replacement battery fits SteelSeries Arctis 3, Arctis 1, Arctis 7 and Arctis 7P headsets using part number AEC503759. It is a single lithium cell rated at 3.7V and 1200mAh capacity. The pack is built to match the original dimensions of 60.0 x 36.9 x 5.0mm and weighs 48.8g.

Sustained Use Behaviour

The cell delivers 4.44Wh of energy and includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. These safeguards maintain stable output during long gaming or listening sessions. The battery is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards for consistent quality.

Thermals Noise and Power

Lithium chemistry produces minimal heat during normal charge and discharge cycles. No moving parts mean silent operation inside the headset. The protection circuitry limits peak current to keep temperatures low and preserve cell longevity.

Highlights

  • Exact-fit replacement for Arctis 3, 1, 7 and 7P
  • 1200 mAh lithium cell delivers 4.44 Wh runtime
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 60.0 x 36.9 x 5.0 mm design weighs only 48.8 g

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity1200mAh
Battery Voltage3.7

Questions about this item

Does the 3.7 V 1200 mAh lithium cell generate noticeable heat during a full day of headset use?

The 4.44 Wh pack is designed to match the original battery specifications and includes over-voltage, over-discharge and short-circuit protection, so it runs at normal temperatures during extended sessions.

What must I already own to install this 60.0 x 36.9 x 5.0 mm replacement pack?

You need a compatible SteelSeries Arctis 3, Arctis 1, Arctis 7 or Arctis 7P headset that uses the AEC503759 part number and a small Phillips screwdriver to open the battery compartment.

Will this 48.8 g battery work reliably in an older Arctis 7 unit that has been in storage?

Yes, the cell is built to the same voltage, capacity and dimensions as the original AEC503759 pack and carries ISO9001, RoHS, CE and UN38.3 certification for safe operation in legacy headsets.

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