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Rectangular black lithium-ion battery pack, model J20-H

KingSener

KingSener J20-H 7.2V 5000mAh laptop battery

SKU CH-11AB-9ZNTF MPN J20-H

7.2 V, 5000 mAh lithium-ion replacement battery for the JBL PartyBox Club 120 speaker

  • Battery Voltage7.2V
  • Battery Capacity5000mAh
  • 2 V 5000 mAh capacity extends wireless playtime
  • 100 % brand-new cells deliver full design capacity from day one
  • Identical dimensions ensure drop-in fit without modifications
  • High-quality Li-ion chemistry provides stable output across charge cycles
  • One-year warranty backs reliable daily operation

Replacement battery for JBL PartyBox Club 120

The KingSener J20-H is a new lithium-ion replacement battery built for the JBL PartyBox Club 120 speaker. It delivers a nominal voltage of 7.2V and a rated capacity of 5000mAh to restore the original runtime. High-quality cells and an integrated protection circuit provide stable power output and guard against overcharge or deep discharge. The black housing matches the factory dimensions for a direct fit without modification.

Ideal for owners of a PartyBox Club 120 needing

This unit suits users whose speaker no longer holds a charge or who want a spare for extended outdoor sessions. It is not intended for other JBL models, different speaker brands, or any laptop application despite the generic category listing. Buyers who need a higher-capacity pack or a different voltage should look elsewhere because the electrical specifications are fixed at 7.2V and 5000mAh.

Key specification: 7.2V and 5000mAh capacity

The single figure that decides compatibility is the combination of 7.2V nominal voltage and 5000mAh capacity. If the original battery label shows different values this pack will not work correctly. Confirm the model code J20-H and the voltage printed on your old unit before ordering to avoid a mismatch.

Highlights

  • 2 V 5000 mAh capacity extends wireless playtime
  • 100 % brand-new cells deliver full design capacity from day one
  • Identical dimensions ensure drop-in fit without modifications
  • High-quality Li-ion chemistry provides stable output across charge cycles
  • One-year warranty backs reliable daily operation

Specifications

BrandKingSener
ModelJ20-H
Part NumberJ20-H
Battery Voltage7.2V
Battery Capacity5000mAh

Questions about this item

How often should the J20-H battery be recharged if it is stored for a long period?

Charge it to more than 80% at least once every month to maintain cell health.

What is the first limit reached during continuous high-drain use of the 5000mAh pack?

The 5000mAh capacity is the first limit; runtime ends when the stored charge is depleted.

Does the 7.2V lithium-ion battery generate noticeable heat when running all day?

Normal operation produces some warmth; avoid hot or humid conditions to prevent excess heat buildup.

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