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What are the max charging specs for the sol republic tracks air headphones

I'm seeking the maximum wattage and amperage output allowable for a portable USB charger for charging the sol republic tracks air headset.

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How to open earcups of sol republic master tracks headphones . Plzzz help


Carefully try to remove the ear cushion.If they come off then there will most likely be screws.Remove them and the front should come off.

Aug 08, 2016 | Audio Players & Recorders

2 Answers

Why no more sound in left side? the right side is fine. i moved the left side like a seesaw, then i found where the sound occur. is it the wire connection problem inside the left side? what to do?


Opened up one of the earcups and dont ask me how it was just by force. The cable that connects the 2.5 to the speaker is frail and there is quite a bit of shielded cable that can rub against each other over time. I fixed it by removing the cable and soldering in two separate cables of similar size.

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Apr 21, 2016 | SOL Republic Master Tracks MFI...

1 Answer

Do I need batteries for this device? If so, what kind, and how do I install them?


You do not need batteries.
Batteries are required in wireless headphones, that do not have a cable with plug.

May 04, 2014 | SOL Republic Master Tracks MFI...

2 Answers

Battery won't hold a charge


There seems to be a no charge state in this case. I recommend checking the battery first, then, move on to the charging system. Use the procedure below to isolate this issue.

Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a positive terminal (red), negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running). To check a battery surface voltage, remove the positive terminal protective cover. Connect the positive side meter lead (red) to the positive side battery terminal. Connect the negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure). If the voltage is not up to specs, replace the battery asap. If the battery is ok and showing good voltage readings; Move on to the alternator/generator drive belt and amperage test.

The alternator is rotated by a drive belt, which is, driven by the vehicles engine crank shaft pulley while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running. Most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. Make sure you have enough tension in the belt for full rotation of the alternator pulley.

Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of an alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage(False reading); Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter will be required. Once the meter is connected start the engine. Next; Turn on all electrical accessories and raise the engine idle to about 1300 RPM. The alternator should produce the max amperage it was designed to produce. Example: a 90 amp alternator should produce about 88 amps. An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail(due to a failed regulator). An alternator is designed to operate at max amperage output only for a reasonable amount of time. Once you have verified the amp readings, check the voltage. To check the voltage, Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive). At engine idle, the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.


  • NOTE_ Be sure to inspect the battery terminals for connectivity issues such as corrosion and so fourth..

Nov 21, 2010 | 2003 GMC Sierra 1500

1 Answer

Why is my charging light coming on at 2000 revs


There seems to be a no charge state in this case. I recommend checking the charging system. use the procedure below to isolate this issue.

Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a +positive terminal (red), - negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running. If the battery cable is disconnected from the battery a spark can be generated which can cause the battery to explode or a major electrical malfunction to occur.)

To check a battery surface voltage, remove the positive terminal protective cover. Connect the +positive side meter lead (red) to the positive side battery terminal. Connect the - negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure)

The alternator is rotated by a drive belt driven by the vehicles engine while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running.(most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. make sure you have enough tension in the belt for full rotation of the alt pulley)

Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Jan 17, 2010 | Renault 181 Cars & Trucks

1 Answer

1997 eclipse has to be charged every day in order to drive


There seems to be a no charge state in this case. I recommend checking the charging system. use the procedure below to isolate this issue.

Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a +positive terminal (red), - negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running. If the battery cable is disconnected from the battery a spark can be generated which can cause the battery to explode or a major electrical malfunction to occur.)

To check a battery surface voltage, remove the positive terminal protective cover. Connect the +positive side meter lead (red) to the positive side battery terminal. Connect the - negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure)

The alternator is rotated by a drive belt driven by the vehicles engine while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running.(most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. make sure you have enough tension in the belt for full rotation of the alt pulley)

Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Dec 22, 2009 | 1997 Mitsubishi Eclipse

1 Answer

New battery when i turn on the heat. my battery light came on? why


The alternator should be tested for its operational value in this case. There may be some issues with the charge rate.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Oct 08, 2009 | 1999 Ford Contour

2 Answers

1997 Cadillac Catera: When the AC is on and the cooling fan comes on the charging guage drops to almost the red. voltage at battery drops from 14.6 to 13.2 and shows undercharge on a battery testing meter....


A charge rate of 13.2 is fine...Likely your battery is getting older and is not charging as well as it used to. You should periodically re-charge the battery using an external charger, as the alternators actual function is to maintain the batteries state of charge, not to re-charge it. Opening the doors, playing the radio with the engine off etc, can and will drain your battery. The alternator will only put a surface charge there and will not actually replace this lost power. I'd begin to worry if charge rate dropped below 12.9.but even then you likely would not have any real problems.

Jul 16, 2009 | 1997 Cadillac Catera

1 Answer

I require a step down plug


I'm disappointed that Dewalt does not have the full specs on their website so . . .
Check the specifications on the charger's label; they should read something like 120 VAC or Volts AC and 2.0 (or similar) amperes or just 'A' after a numerical value.
If the label does not give you an amperage value you can use the output value instead and substitute the output voltage at the high end if a range is listed.
To get the adaptor (step-down transformer) wattage, multiply the AC values such as:
120 X 2=240 watts input power.
If these AC values are not available;
Take the high end charge voltage if it is a multirange charger, and multiply those values;
One we own DW9108 (- yours is 7.2 - 18) is spec'd at 9.6 to 18 volts and 2.8 amperes:
2.8 X 18=50.4 watts.
You can see that the values do not correspond but it is a multirange device so the maximum current taken from the AC line can be ~ 2.0 amperes but this is charging a specific pack and the peak input current is only momentary so the maximum output current and voltage are the values one should use as a guide. In other words, the output wattage is closer to the value needed.
Since there are losses in any transformation (mostly heat), the required stepdown transformer must be capable of more than the indicated 50 watts.
A safe factor would be 1.5 X 50 (W) or ~ 75 watts minimum to ensure the charger receives the 120 volts it wants.      
Anything that will step down your (?) 220 volts and is rated at 75 watts or more will do the job even if the Dewalt draws a little more current at your line frequency of 50Hz which it may.

Oct 09, 2008 | Dewalt 7.2-18.0 Volt One Hour Charger

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