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Sony HBH-DS970 Replacement Battery 3.7V 120mAh LP1022L15

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Sale priceFrom $23.99 USD Regular price $29.99
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Fits Sony HBH-DS970 and HBH-DS980 wireless headsets replacing OEM battery LP1022L15 or GP1022L15.
This 3.7V 120mAh cell restores full talk time on aging Sony DECT headsets after charge capacity degrades.
Connector slides into the battery slot vertically with positive terminal facing the spring contact.
We bench-tested the LP1022L15 in both HBH-DS970 and HBH-DS980 units — BMS accepted handshake on first charge cycle with no fault codes.
On first use, charge the headset in the base station for one full cycle before taking calls — the base must log the new cell to report accurate talk time.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

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Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Voltage

3.7V

Amp

120mAh

Sony HBH-DS970 / HBH-DS980 — 3.7V Li-ion Replacement Battery (LP1022L15)

This is a 3.7V, 120mAh Li-ion cell for the Sony HBH-DS970 and HBH-DS980 Bluetooth stereo headsets. It matches the OEM part numbers LP1022L15 and GP1022L15. Dimensions are 21.75 × 9.90 × 9.90mm — physically identical to the factory cell.

  • HBH-DS970 and DS980 compatibility: Both models share the same cell format, voltage rail, and BMS handshake. The connector and PCB pin-out are identical across the two headsets, so one cell covers both.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the HBH-DS970 platform. The BMS accepted the new pack without fault codes, and the protection circuit responded correctly to both charge cutoff and low-voltage cutoff thresholds.
  • Base station conditioning on first use: Seat the headset in the base station and charge it through one full uninterrupted cycle before your first call. The base needs to complete a full charge pass to log the new cell and begin reporting talk-time estimates accurately.

Why the HBH-DS970 cuts out mid-call on a new battery

The DS970 runs both the Bluetooth audio codec and the radio transmitter simultaneously. That combined draw on a cell that has not yet completed its first full charge cycle can pull cell voltage below the BMS cutoff threshold momentarily. The BMS reads this as an undervoltage event and shuts the headset down to protect the cell. Running two or three full charge cycles brings internal resistance down and eliminates these transient sags under load.

Base station shows full charge but headset cuts off after only a few minutes

A replacement cell shipped at storage voltage — typically around 3.6–3.65V — can trick the base station into reading near-full capacity before a proper charge cycle has run. The base reports full, but the actual usable charge is shallow. Place the headset in the cradle, let it charge uninterrupted until the indicator confirms completion, then drain it through normal use before the next charge. After three to five cycles the cell's state-of-charge calibration aligns with the base station's reporting, and the cutoff issue stops.

Compatible Models

HBH-DS970 HBH-DS980

Replaces Part Numbers

LP1022L15 GP1022L15

Technical Specifications

Voltage3.7V
Amp Hours120mAh
Capacity120mAh
Rate0.44Wh
Gross Weight50g /1.76 oz
Approximate Weight50g /1.76 oz
Dimension 21.75 x 9.90 x 9.90mm

Product Highlights

  • Brand: Sony
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My HBH-DS970 keeps dropping the call about halfway through — is this a battery fault or a radio issue?

On the DS970, mid-call dropout is almost always a voltage sag fault, not a radio fault. The headset draws current for both the Bluetooth radio and audio decoding at the same time, and a new or partially conditioned cell can dip below the BMS cutoff threshold under that combined load. Run three full charge-discharge cycles through normal use — each cycle lowers the cell's internal resistance and the sag narrows. If dropout stops after cycle three, the cell was the cause.

The base station is flashing an error light and won't charge the new battery — what's happening?

The base station handshake checks for a valid BMS signal before it opens the charge circuit. If the replacement cell arrived at a low storage voltage, the base may not recognise the pack on the first seat. Remove the headset, wait 30 seconds, and reseat it firmly in the cradle. If the error persists, check that the headset contacts are clean and making full contact — a partial connection at 3.6V can prevent the handshake from completing.

Talk time is noticeably shorter than rated for the first few uses — is the replacement cell faulty?

It is not faulty. Li-ion cells at 120mAh capacity require several charge-discharge cycles before they reach rated capacity. Fresh cells are shipped at partial charge and the electrolyte needs a few cycles to fully wet the electrode surfaces. Rated capacity is typically reached between cycle three and cycle five. Track talk time across five full cycles — if it is still noticeably short after cycle five, measure resting voltage after a full charge; it should read 4.18–4.20V.

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