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Flat rectangular lithium-polymer battery, dark grey finish, slim profile with connector ribbon visible

Estry

Estry WH-CH700N 1000mAh 3.7V standard battery

SKU CH-SJEK-5R6N7 MPN WH-CH700N

Replacement Li-Polymer battery with 1000mAh capacity and 3.7V output fits Sony WH-CH700N, MDR-XB950N1 and SRS-WS1 headphones

  • TypeRechargeable Batteries
  • Battery Capacity1000mAh
  • Battery Voltage3.7
  • 1000mAh capacity matches original runtime
  • 7V Li-Polymer chemistry fits WH-CH700N, MDR-XB950N1 and SRS-WS1
  • 56×32.2×6.4mm dimensions align with LIS1553 and LIS1553(SY6) part numbers
  • Overcharge, over-discharge, over-voltage and short-circuit protection built in
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards

Replacement battery for Sony headphones and speaker

This Estry battery replaces the original LIS1553 cell in Sony WH-CH700N, MDR-XB950N1 and SRS-WS1 devices. It is a lithium-polymer pack rated at 1000mAh and 3.7V. The unit is built to the same specifications as the factory part and carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications. Buyers who need a different capacity or voltage cannot use this pack.

Thermal behaviour and power draw

The 3.7Wh cell operates at a nominal 3.7 volts and fits within a 47.56 by 32.2 by 6.4 millimetre footprint weighing 45.0 grams. Internal protection guards against overcharge, over-discharge, over-voltage and short circuits. Normal use stays within the design limits of the original equipment. No active cooling or external power circuitry is required beyond the host device.

Upgrading from a worn original cell

This battery restores runtime lost to age or cycle wear in the compatible Sony models. The jump is worthwhile when the original pack no longer holds a usable charge or shows swelling. It does not add capacity beyond the stock 1000mAh rating, so users seeking longer playtime than the factory specification will not gain it here.

Highlights

  • 1000mAh capacity matches original runtime
  • 7V Li-Polymer chemistry fits WH-CH700N, MDR-XB950N1 and SRS-WS1
  • 56×32.2×6.4mm dimensions align with LIS1553 and LIS1553(SY6) part numbers
  • Overcharge, over-discharge, over-voltage and short-circuit protection built in
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards

Specifications

BrandSONY
TypeRechargeable Batteries
Battery Capacity1000mAh
Battery Voltage3.7

Questions about this item

How do I install the 47.56 x 32.2 x 6.4 mm Li-Polymer cell in my WH-CH700N and what step do people miss?

Open the headphone housing, disconnect the old LIS1553 pack, connect the new 3.7 V 1000 mAh battery to the same socket, then reassemble; the step most people skip is checking the connector polarity before soldering or snapping it in.

What maintenance or replacement will the 1000 mAh 3.7 V Li-Polymer cell need later?

The cell has built-in overcharge, over-discharge, over-voltage and short-circuit protection, so no routine maintenance is required; expect to replace it again only when run-time drops noticeably after many charge cycles.

What limit appears first during sustained use of the 3.7 Wh replacement battery?

The 1000 mAh capacity sets the runtime ceiling; under continuous load the headset will run until the protection circuit cuts off at the lower voltage threshold.

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