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Small rectangular lithium-ion battery pack, 750 mAh 3.7 V, dark casing with connector lead

JBL TUNE Beam Charging Base Replacement Battery 750mAh 3.7V

SKU CH-5EMV-54WZN

750 mAh 3.7 V lithium-ion replacement cell restores power to the JBL TUNE Beam charging base

  • Battery pack size42.8 × 16 × 9.4
  • Battery typeLithium ion
  • Battery capacity750 mAh
  • Battery voltage rating3.7 V AC
  • Details42.8 × 16 × 9.4
  • Product typeLithium ion
  • Direct replacement for JBL TUNE Beam charging base
  • 750 mAh capacity restores original run time
  • 7 V lithium-ion cell matches factory voltage
  • Compact 42.80 x 16.00 x 9.40 mm fits precisely
  • Built-in protection guards against overcharge and short circuit

Direct Replacement Battery

This 750 mAh lithium-ion cell fits the JBL TUNE Beam charging base and matches the original part number GSP981642. It delivers 3.7 V and 2.78 Wh in the same 42.80 x 16.00 x 9.40 mm form factor. The pack includes a decoded chip so the headset recognises it immediately.

Steady Daily Runtime

Under normal use the battery maintains its rated capacity across repeated charge cycles rather than fading after a few hours. ISO9001, RoHS and CE certified cells resist over-charge, over-discharge and short-circuit stress. A fresh pack reaches peak performance after two or three full cycles.

Upgrade From Worn Originals

Owners whose original base no longer holds a charge can restore full docking function without replacing the whole unit. The swap is straightforward for anyone comfortable opening the case and seating the connector. Buyers needing a higher-capacity pack or a different voltage will not find those options here.

How it compares

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

Price $14.99
Cheaper than about 92% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand nameCameron sino
Model nameJBL TUNE Beam Charging Base
Part numberJBL GSP981642
Product typeLithium ion
Power
Battery typeLithium ion
Battery capacity750 mAh
Battery voltage rating3.7 V AC
In the box
Battery pack size42.8 × 16 × 9.4

Questions about this item

How hot does the 750 mAh lithium-ion cell get if the charging base runs all day?

The replacement cell is rated for storage up to 60 °C (140 °F); normal charging-base operation stays well below that limit.

What must I already own to install this 42.80 × 16.00 × 9.40 mm battery?

You need the original JBL TUNE Beam charging base (part GSP981642) and a small Phillips screwdriver to open the case.

Will this 3.7 V pack work with an older TUNE Beam base that has seen heavy use?

Yes — the fully decoded chip matches the original specification, so the aged base will recognise and charge it normally.

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