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Small rectangular lithium battery pack, dark casing, two wire leads, compact flat shape

Estry

Estry Battery Replacement for Tune 510BT 500BT 523028 603028 3.7V 450mAh

SKU CH-X4FA-7TTBY

Replacement lithium battery for Tune 510BT and 500BT headphones, 3.7V 450mAh with overcharge protection

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity500mAh
  • Battery Voltage3.7
  • Replaces original battery in JBL Tune 510BT and 500BT headphones
  • 7 V 450 mAh lithium cell matches factory voltage and capacity
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Compact 30.0 x 30.0 x 6.2 mm size fits the stock battery compartment
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Direct replacement for Tune headphones

This lithium battery pack replaces the original cell in Tune 510BT and Tune 500BT models. It matches the factory voltage of 3.7V and fits the same 30.0 x 30.0 x 6.2mm footprint. The pack weighs 36.0g and includes built-in protection circuits against overcharge, over-discharge, over-voltage and short circuit.

Capacity choice: 450mAh or 500mAh

Two capacity ratings appear in the data: 450mAh at 1.67Wh and 500mAh nominal. Both share the same 3.7V output and physical size. Select the figure that matches the part number on your existing battery — 523028, 603028 or 02-553-3494 — to ensure correct runtime.

Low-heat single-cell design

A single 3.7V lithium cell produces minimal heat during normal headphone use. No active cooling is required and the pack operates silently. The protection board limits current spikes, keeping power draw steady and preventing thermal stress on the headset electronics.

Highlights

  • Replaces original battery in JBL Tune 510BT and 500BT headphones
  • 7 V 450 mAh lithium cell matches factory voltage and capacity
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Compact 30.0 x 30.0 x 6.2 mm size fits the stock battery compartment
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity500mAh
Battery Voltage3.7

Questions about this item

How long will the 450mAh capacity actually run my Tune 510BT between charges?

The 450mAh rating matches the original specification for the Tune 510BT and Tune 500BT, so real-world listening time should be the same as when the headphones were new.

What connector standard does the pack use and will it plug straight into the headphone PCB?

The replacement is built to the exact dimensions of the original 523028 and 603028 cells, so the existing connector mates directly with the headphone board without adapters.

Will the 30.0 by 30.0 by 6.2mm pack fit inside the earcup without forcing the shell?

Those dimensions replicate the factory battery, so the pack seats in the original cavity and the 36.0g weight keeps the balance unchanged.

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