We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small rectangular black lithium-polymer battery with two terminals

Cameron & Co

Cameron & Co DS-CS-SWF700SL Battery 3.7V 220mAh Black

SKU CH-M0KJ-NHJ32

Lithium-polymer replacement cell for Sony headset charging cases, 3.7 V 220 mAh, 31.44 × 17.40 × 6.30 mm

  • Compatible with Sony WF-C500 charging case
  • Replaces original part numbers 1185-0911 and 621733
  • Li-Polymer chemistry delivers 3.7V 220mAh capacity
  • Compact 31.44 x 17.40 x 6.30 mm fits inside case
  • Brand new 100% OEM compatible replacement battery

Compatible Replacement Battery

The Cameron & Co DS-CS-SWF700SL is a lithium-polymer battery built for the charging cases of Sony WF-C500, WF-SB700, WF-SB700N, WF-XB700, WF-XB700N and WH-CH510 headsets. It matches OEM part numbers 1185-0911 and 621733 for a direct swap.

Sustained Capacity Delivery

Rated at 3.7V and 220mAh, the cell stores 0.81Wh of energy to keep the case topping up the earbuds over repeated cycles. Li-Polymer chemistry maintains stable voltage through the discharge curve so each recharge cycle delivers predictable run-time.

Compact Black Housing

The black pack measures 31.44 by 17.40 by 6.30 mm and fits the original case cavity without modification. Buyers who need a higher-capacity cell or a different voltage will not be served by this model.

How it compares

Measured against everything we stock in Wired & Wireless Headsets, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 93% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-SWF700SL

Questions about this item

How much heat does the 3.7V 220mAh Li-Polymer cell generate during a full day of charging the Sony case?

The cell stores 0.81 Wh and fits within 31.44 x 17.40 x 6.30 mm; normal charging currents keep temperatures only slightly above ambient.

Which Sony charging case models must I already own for this DS-CS-SWF700SL battery to work?

It replaces part numbers 1185-0911 and 621733 inside the WF-C500, WF-SB700, WF-SB700N, WF-XB700, WF-XB700N and WH-CH510 charging cases.

Will the 3.7V 220mAh replacement behave the same as the original battery in my older WH-CH510 headset?

Yes, it matches the original 3.7 V voltage and 0.22 Ah capacity, so charge time and runtime stay identical to the factory cell.

More in Wired & Wireless Headsets

Similar items