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Rectangular black HP spare battery for CS540 model

HP

HP 85Q98AA cell phone battery CS540

SKU CH-4ZWT-CGRYV MPN 85Q98AA

Genuine HP spare battery kit for the CS540 cordless handset, model 85Q98AA

  • Product typeBattery Kit
  • Genuine HP replacement battery for CS540 handsets
  • Battery kit includes spare cell 85Q98AA
  • Manufacturer-listed spare part number 86180-01
  • First listed by manufacturer on 13 March 2026
  • Country of origin China for supply-chain traceability

Genuine HP Spare Battery for CS540 Phones

The HP 85Q98AA is a factory replacement battery kit designed specifically for the CS540 handset. It restores original runtime for users whose existing cell has degraded. This component is intended for owners of that exact model needing a direct swap. It will not fit other desk phones or mobile devices.

Simple User Installation With No Tools

The battery kit is built for tool-free replacement by the handset owner. Typical issues arise only when the battery compartment latch is stiff or when contacts are not seated fully. Align the pack correctly and press until the latch clicks to avoid intermittent power. No soldering or disassembly beyond the battery door is required.

Verify Your Handset Is Model CS540

Before ordering, confirm the model number printed on your phone matches CS540 exactly. Check that the original part reference 86180-01 appears on your current battery label. This spare is not compatible with other HP cordless series or third-party handsets. Ensure the phone powers on with the old pack to rule out charger faults.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $34.99
Pricier than about 91% of the 868 comparable items (median $14.99).

Specifications

Product
Product typeBattery Kit
Size & build
Shipping weight0.02 kg
Package size84 × 84 × 10 mm

Questions about this item

How can I confirm the 85Q98AA battery is working correctly after installing it in my CS540 handset?

Insert the battery, power on the CS540 handset, and verify the charge indicator shows normal charging behaviour and the device holds a call without unexpected shutdown.

What components are included with the 85Q98AA battery kit and is any extra hardware required for installation?

The kit supplies the spare battery for the CS540; no additional tools or separate parts are needed to fit it into the handset.

Which version of the HP spare battery matches the CS540 model 85Q98AA?

The 85Q98AA (also referenced as 86180-01) is the specific battery kit designated for the CS540 handset.

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