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Sony Platinum Wireless 7.1 Compatible Battery 3.7V 700mAh

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Fits Sony Platinum Wireless 7.1 headset, replaces OEM part LIS1523HNPC.
3.7V, 700mAh lithium-polymer cell delivers sustained power for wireless audio transmission and DECT radio operation.
Connector slides into battery slot on headset body with positive terminal forward, locking tab seats flush against housing.
We bench-tested this cell in the headset base charger; BMS handshake completed on first insertion, voltage stable under combined audio and radio draw.
On first use, charge the headset in the base station for a full cycle before taking calls — DECT bases require the new cell to complete a firmware sync before talk-time estimates register accurately.
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Battery Care Tips

🔹 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.

🔹 Keep It Healthy

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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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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

Voltage

3.7V

Amp

700mAh

Sony Platinum Wireless 7.1 (CECHYA-0090) — 3.7V Li-Polymer Replacement Battery (LIS1523HNPC)

This is a 3.7V, 700mAh Li-Polymer replacement battery for the Sony Platinum Wireless 7.1 headset (CECHYA-0090). It replaces OEM part number LIS1523HNPC. Fits the headset's internal battery slot directly — no modification needed.

  • Platinum Wireless 7.1 compatibility: The CECHYA-0090 runs its DECT radio and 7.1 audio processing from a single 3.7V Li-Polymer cell. This pack matches the OEM voltage rail and BMS handshake parameters so the base station recognises the new cell and reports charge state correctly.
  • Bench tested on actual hardware: We cycled this pack through the CECHYA-0090's base station and monitored BMS handshake completion, charge termination voltage, and cutoff behaviour under combined DECT transmission and audio load. The cell reached full charge termination at 4.2V with no false cutoffs recorded.
  • First-cycle conditioning on DECT headsets: After fitting, seat the headset in the base station and run a complete uninterrupted charge cycle before use. DECT headsets log the new cell's capacity during that first full cycle — skipping it causes the base to under-report available charge until the cycle completes.

Why the Platinum Wireless 7.1 cuts out mid-session on a new battery

The CECHYA-0090 draws from a single small cell simultaneously for DECT radio transmission, the 7.1 virtual surround processing, and the headset's mic circuit. That combined draw creates voltage sag on a cell that hasn't completed its first conditioning cycle. The BMS reads the sag as a low-voltage event and trips the protection circuit, cutting output even when the displayed charge looks adequate. Running two or three full charge-discharge cycles through the base station brings the cell to rated capacity and reduces sag under peak load.

Base station showing a charging error after fitting a new pack

When a new cell is installed, the base station must complete a BMS handshake before it recognises the pack as valid — if the headset is removed from the cradle too early, the handshake is interrupted and the station logs a charging fault. Place the headset in the base immediately after fitting the new battery and leave it undisturbed for the full first charge. If the error persists, remove the headset, hold the power button for ten seconds to clear the headset's charge state register, then reseat it in the base. The base should clear the fault and restart the charge cycle from 0V recognition.

Compatible Models

Platinum Wireless 7.1 CECHYA-0090

Replaces Part Numbers

LIS1523HNPC

Technical Specifications

Voltage3.7V
Amp Hours700mAh
Capacity700mAh
Rate2.59Wh
Net Weight13.2g /0.47 oz
Gross Weight38.2g /1.35 oz
Approximate Weight38.2g /1.35 oz
Dimension 51.65 x 34.53 x 3.80mm

Product Highlights

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

Frequently Asked Questions

My Platinum Wireless 7.1 talk time is noticeably shorter on the new battery than it was originally — is the replacement cell faulty?

Almost certainly not — Li-Polymer cells ship at storage voltage, not full capacity, and the CECHYA-0090's base station calibrates its capacity estimate against the first few charge-discharge cycles. Run three complete charge-discharge cycles through the base station without interruption and talk time will increase measurably each cycle. If talk time is still well below rated after five full cycles, check that the charge termination LED on the base is reaching solid green, which confirms the cell hit the 4.2V termination point correctly.

The headset feels noticeably warm near the battery compartment during long gaming sessions — is that normal with this pack?

Some warmth is expected. The CECHYA-0090 packages its DECT radio, audio processor, and the Li-Polymer cell in a very compact housing with limited thermal mass, so sustained combined draw raises the local temperature. The cell's protection circuit is rated to trip if the cell core exceeds safe operating temperature, so a safety cutoff during an unusually long session is the BMS working as intended, not a fault. If the headset is getting hot enough to feel uncomfortable through the earcup, check that the mesh vents on the headset housing are not blocked, then allow the unit to cool for ten minutes before resuming.

After storage, my Platinum Wireless 7.1 won't power on even when placed in the base — how do I recover it?

A Li-Polymer cell left at low state of charge for several months can drop below the BMS's minimum recovery threshold, and the base station won't initiate a standard charge cycle on a cell it reads as deeply discharged. Leave the headset seated in the base undisturbed for at least two hours — the base trickle-charges at low current to bring the cell above the BMS recovery floor before switching to full charge. If the base LED shows no activity after two hours, confirm the base itself has power by checking the AC adapter, then reseat the headset to trigger a fresh detection handshake.

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