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Battery for Harman Kardon Onyx, New Upgraded (4200mAh) High Capacity Battery Replacement For Harman Kardon Onyx Studio 1/2/3/4 Bluetooth Speaker
High Quality IC Chip
Every battery is manufactured and tested under strict quality control standards. Build-in microchip to prevent over-charging, over-discharging, short-circuit and over-heating. Multiple-protection for safer operation for both user and devices.
Ultra High Capacity Harman Kardon Onyx Battery
Made of top-rate A Lithium-Ion battery cell. Upgrade 4200mAh Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Bluetooth Speaker has super capacity, bring you more convenient and power your life.
Longer battery life
Upgraded High Capacity 4200 mAh. Longer battery life (1200+ cycles). Which means that you can use Harman Kardon Onyx Studio Replacement Battery and get more power without worrying about the sudden exhaustion of the battery.
FAQ after installation:
Q1: Why battery wonât charge?
A1: Maybe bad connect. Reopen your bluetooth speaker and reconnect the battery connector to logic board socket. Make sure battery connector connects well.
Q2: Why bluetooth speaker canât turn on?
A2: Make sure battery connector was connected correctly and charge bluetooth speaker for 15 minutes with original charger and cable. The charging needs to be charged to 5% before it can be turned on normally, If battery have exhausted battery power.
Q3: Why battery connector does not fit?
A3: Please check if you have bought and received wrong model battery, this battery is only for Harman Kardon Onyx Studio 1, Onyx Studio 2,Onyx Studio 3,Onyx Studio 4 Bluetooth Speaker. Check the model number on the back of your bluetooth speaker.
Q4: How to use it for optimal use?
A4: When using the new Harman Kardon Onyx Battery, Please use up all the energy of battery for the first three times before charging, and then take a full charge fo 6-8 hours, thus the battery can reach the optimum effect of using.
Golden Shamrock
Reviewed in the United States on February 21, 2025
I got this for my Harman Kardon Onyx Studio 3 speaker that stopped working a few years ago. I cannot confirm whether the battery worked or not because I was unable to get my speaker to power on even with a new power supply and battery. However, Iâll note 3 things about this battery. The first is that it has a higher amp hour rating than the HK battery that came with the speaker. Theoretically, then, it should last longer on battery power than the OEM battery. But I have no way of knowing with the bricked speaker. The second is that the battery came with a plastic shim to facilitate removal of the grill. That worked well. The 3rd is that it also came with a mini Philips screwdriver to remove the speaker face from the backing. Unfortunately, the Onyx uses mini hex screws and this screwdriver didnât work. I had to use a hex from my bike repair kit. Other than that, Iâm sure this would be a nice battery since it is more powerful than the one it replaces from the manufacturer.
JC3
Reviewed in the United States on January 30, 2025
This Battery for Harman Kardon Onyx, New Upgraded (4200mAh) High Capacity Battery seems to be the perfect replacement for my dead battery. The installation is seamless and easy to do yourself. Remove the speaker cover, the remove the rubber grommets that cover the Phillip head screws. the speaker comes apart be careful to unplug the connector cables that connect to the inner part of the speaker. Open the compartment that house the old battery by removing the screws. I even able to use the tape wrapped around the previous wire connector for the battery carefully wrapped it around the new battery wire connectors placed the battery in the housing cradle. closed everything back up turned on the power and I once again have the use of using the Harmon Cardon speaker without having it continually plugged in. (word of advice when not using the speaker do not leave it plugged in this prevent overcharging the battery and ultimately killing the battery) I like that the replacement battery connection cable is pretty long so you're not having to try to connect a short cable that does not give you much of an angle to line everything back up to close the speaker housing back together. Once I was able to determine the battery works I put everything back together and can now once again enjoy the amazing sound these speakers put out. This Battery for Harman Kardon Onyx, New Upgraded (4200mAh) High Capacity Battery is a great replacement ordered an at excellent price point, plus you get 4200mAh vs 3000mAH found in other batteries offered at the same price point of this battery . Definitely a better value and price. So I would recommend this replacement battery. This was a great find highly recommended.
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