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The battery is dead & the charger isn't working

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  • gordonross Sep 01, 2008

    the battery and the charger are not working. a new battery has been replaced but it still shows a little batery image with a red cross through it. Blackberry 8300

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I have the exact same problem - did replacing the battery take care of it?

Posted on Sep 06, 2008

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You will most likely have to replace the batter if the battery really is the problem.

Posted on Jun 29, 2008

  • Ekse Jun 29, 2008

    You haven't said anywhere what kind of device you got - brand model?

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Posted on Jan 02, 2017

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Why does my battery charger only go on float charge


If you are saying the charger is staying on the very low side of charge for a dead battery .depending on the type charger you have it may be your battery is too low for your charger to get the dead battery going..sometimes I need to give a completely dead battery a jolt to get it going..if you have or know some one has a jump start type charger that puts out very high amps for starting..have them give it a few min of that high amp charge..if you have a battery where you can take the cals off you should see the cells bubbling...All cells must show some or it is shorted. Just don't let on more the a min or two...good luck

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Pride Jet 3 Ultra 4500 rpm, unit is completely dead, am I missing an auxiliary charger or is it built into the unit?


I suggest that you start with determining the condition of your batteries and work outwards from there. Dead batteries just don't want to take a charge. Test your batteries with a meter before you start part swapping. The internal charger is only about 4 amps so it will take many hours to charge a 24volt system.

May 06, 2013 | Jet 3 Ultra Power Chair

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What size wire is needed from transfer switch to generator


Most battery chargers are trickle type chargers - that is, they provide a constant low current (under an amp) output at 12 - 15 volts to keep the battery charge up. This small charging current is handled easily by a #14 or #12 wire which will pass up to 2 or 16 amps consistently, respectively (the larger cables off the battery are for the starter motor).

If you're having trouble maintaining a charge on the battery, a careful check of the charging circuit is required. Look for loose or corroded connections - at the battery in particular, open or blown fuses on the input (120 volt) side of the charger and the 12 volt output side (if provided). Battery acid is conductive. This means if there is a path of battery acid from one post to the other - no matter how long or short the path - the battery will discharge through this path. Neutralize (with baking soda) and clean any battery acid from the area to be sure the battery isn't discharging faster than the trickle charger can charge it. You can check the output of the charger with a DC voltmeter. Simply press the test leads to the battery posts and some value above 11.5 volts (11 - 12.75 volts may not be uncommon). Look at the chart below to get an idea of the charge of a lead acid battery

4_9_2012_7_36_01_pm.png

With the battery disconnect from the charger (or the charger powered off), the meter should show indicate 12 volts (even if practically dead) without a load. That's why it is important to load the battery when trying to get a voltage reading from it. Many auto parts stores sell and loan battery load / meters expressly for this purpose. They look like this:


4_9_2012_7_22_05_pm.jpg

If you have a battery that won't stand up under load, you may have a a problem with acid / distilled water level or even a dead cell. You can not check these variables in a maintenance free battery however. If you have removable caps on the battery, check and top off the level with distilled water only to a "full" or "high" level mark. A hydrometer can be used to determine the charge of each cell in the battery. These can be had for under $10 in most auto parts stores, too. They look like this:

4_9_2012_7_27_43_pm.jpg
Make sure you get one to check the specific gravity of battery acid - NOT to check anti-freeze level protection - they look similar.

Good luck!

Mar 31, 2012 | Generac Guardian Model 5784 20 Kw...

1 Answer

Will not turn on


Thank you for your question.

This camera has no low battery indicator light. It also has a short battery lifespan. You may want to buy a new battery, charge it up and try it.

Here's where you can find the battery:
http://www.thediscountplanet.com/Store/search_results.asp?v_search=powershot&v_type=0&v_supplier=0&page=1&lowest=0&highest=9999999&map=0

If this does not solve the problem, check that your charger is working. If chargers go bad, the user thinks they charged the battery all night and the camera still doesn't work.

Many times, the battery goes completely dead because it hasn't been charged in months. In this case a new battery and charger may be purchased to solve the problem.

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1 Answer

My polaroid t831 is completly dead. i lost my battery charger and i only have the computer USB charger left. but it doesn't work at all. I have tried to look online for polaroid chargers but i had no luck...


I found chargers and batteries for this camera by searching Amazon for "polaroid t831". There are also cheap universal chargers that will charge any small camera or phone battery, like THIS ONE

Most cameras don't charge from the USB cable.

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1 Answer

Battery in Jeep Grand Cherokee dead this am and less than 1 year old. I have a Everstart 100 battery charger plugged in and on the car. How long does it take to charge the battery. The charger is plugged...


How many amps does this charger put out????
A small trickle charger will take forever to fully recharge a dead battery, you'll need to have a battery charger that can put out enough amps to properly charge a dead battery.To clarify, the chargers sold at Sears, the large square types on wheels are the best for charging dead batteries and they also have an amp meter telling you how much the battery is accepting. After you charge your battery, you should be around 12.5 volts to 12.7 volts. DO NOT OVER CHARGE!!!

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3 Answers

HP Compaq nc6220 Laptop is dead. no lights,


Is this the same if the charger is also plugged in??

Remove battery and retry with charger plugged in.

If same battery charger is faulty.

Dec 22, 2009 | Compaq Hewlett Packard nc6220 PC Notebook

2 Answers

Batteries not charging - just replaced with new -amp meter dosent move while plugged in. Old batteries were dead and owners manual says charger will cease to work when batteries die and to contact pride...


1st Check the 25amp inline fuse located behind the volt meter. 2nd Check the 50 amp fuse located behind the foot rest. A pin located under the foot rest when pulled out will open the front to access the fuse.

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1 Answer

Unable to crank after sitting


Interesting problem. There are a number of things that can contribute to these symptoms: Battery not holding charge, charging system not working, bad/corroded battery and/or starter cable connections, and of course something draining the battery when the ignition is off.

Before doing these tests, make sure the battery is fully charged by disconnecting it from the car and charging it 24 hours with an external battery charger.

Is the charging system (alternator) working? Accords have an idiot light, not an ammeter/voltmeter, so it could be your car isn’t charging and the indicator light is burned out. Connect a voltmeter to a fully charged battery and observe the voltage (should be about 13.8 volts). Now start the car and observe the voltage again, should be higher than before (around 15 volts). If the voltage doesn’t increase at least slightly either the alternator belt is loose and slipping or the alternator is bad.

Are the battery terminals tight/clean? Any corrosion on the terminals or wires? How about the end that connects to the starter? How about the ground wire to chassis? Any corrosion could produce an intermittent connection problem that acts like a dead battery.

The battery may be new…but is it good? Charge it, connect it and confirm the car starts. Then DISCONNECT the battery, let sit 24 hours, re-connect and try to start. If the battery now acts dead maybe it is bad. Exchange under warranty.

And last, something is discharging the battery. First question, do you have any non-Honda add-ons like an aftermarket audio system with a power amp? Audio power amps have a direct wire to the battery for greater power, if the amp isn’t turning off then you’ll have a drain. Try disconnecting such equipment and see if your problem goes away. If that’s not it connect an ammeter in series with the battery with the ignition OFF and start pulling fuses one by one until you find what’s causing the drain.

Hope this helps!

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2 Answers

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Make sure you have an original OEM charger for the MDA. Many of the knock off chargers don't provide the right amperage for the device. What happens is that since the phone is completely dead, it can't regulate how many amps the battery should get during the charge and an incorrect charge current won't charge the battery. I'm guessing that someone sold you a Motorola RAZR charger or another knockoff made for the RAZR. This might charge your phone when the battery is working, but not when it's DEAD. Also you won't have luck plugging it into a computer USB cable because, again, the phone can't tell the computer what charge to send and most computers only produce <0.5 amps in the USB port.

Get a charger that states it is an OEM (original eqipment manufacturer) device or one that is specifically designed for the MDA (or Cingular 8125). eBay is full of them.

Bad charger (probably won't work for a dead battery)

Good Charger (correct amperage and designated for the MDA)

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