Question about Electronics - Others

1 Answer

XTAR VC4 not charging?

Charging current drops at 0A or 0.1A if the cells are depleted below 3.5V Only workaround was to plug/unplug multiple times till the charging power goes around 0.5A. Got the recomended charger made by XTAR too! Still no fix...Anyone fixed this problem somehow?

Posted by Cherwally on

  • Cherwally
    Cherwally Dec 19, 2018

    Try charge that batteries over 3.5V first and see if the XTAR charger will still reject them.
    I guess the main problem lies in the XTAR firmware, if the max depleted voltage limit will be lowered with a 0.2-0.3V...it should behave so much better!
    Wish i was able to help modify that firmware myself but is not one of my skills.

  • Anthony Cardenas
    Anthony Cardenas Dec 20, 2018

    I tried to send a 'Thumbs Up' for your reply, but I found no usual option to do so? I do so now manually... Thank you.

    Others who replied about 'cell phones'(?) sorry but unless unless YOUR cell uses AAA or AA batteries your replies are not relevant.

    Anthony

×

Ad

1 Answer

Anthony Cardenas

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Electronics ... Master
  • 757 Answers

Ya, the internal protection wants to protect your XTAR from "shorts"... that low voltage fools the regulators. I have one just like yours and mine can't be 'tricked' into charging no matter how many times I connect and reconnect. If you bypass the regulators you may cook your batteries ~ if you forget about them in the charger; so "smart chargers" are your best bet,
After my XTAR I purchased a POWEREX and it was much better, but failed too after just 4 months. Sadly the seller is out of business. Now I'm using a really crummy charger I really don't trust...

Posted on Dec 19, 2018

Ad

5 Related Answers

Anonymous

  • 1 Answer

SOURCE: w810i not charging

basicly there are 3 pins on the top of your phone (take the battry out and you shall see them on the far end) get a pair of tweezers and push the clips in and hold for a while ... slot your battrey back in and put it in charge it should work :)

Posted on Oct 03, 2008

Ad

Anonymous

  • 306 Answers

SOURCE: Does leaving a cell phone charger plugged in to an outlet at home,without having the phone charging in it,drain energy from your home?

Yes. You are right. Here energy is not the criteria. It is always safe to unplug the charger (when not in use) to prevent the damage of a cell phone due to accidental over load of electricity or short circuits. Moreover Chargers do draw power when plugged in, whether or not a device is actually being charged.
If the charger is plugged in someplace easy to access, like right by where you keep your phone, you should unplug it. But if it would be difficult to have to plug it in every time you need to use it, you'll be fine just leaving it plugged in..and.It still uses energy even when not charging. Any electronic device plugged in a socket uses energy whether it is in use or not.

Posted on Oct 08, 2008

gsage

Glenn Sage

  • 180 Answers

SOURCE: Laptop Compaq N610C did not powered ON

Remove your battery - start the unit on A/C then after booting up refitted battery.

Posted on Mar 07, 2009

martbalt

  • 152 Answers

SOURCE: my motorola w755 stopped charging

Check the contacts between phone and battery, if necessary align or clean.

Posted on May 21, 2010

Gerald Manuel

  • 564 Answers

SOURCE: sAMSUNG LAPTOP PLUGGED IN NOT CHARGING

try removing the battery and just use the mains power. If the laptop works you may need a new battery. If it doesn't your charger is faulty.

Posted on Nov 26, 2012

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How can I tell when my Tzumi bluetooth keyboard is fully charged?


VERY COOL ADDITION for almost ALL of your USB charging needs and questions! Works great for Cell Phones too and much more...

GO to EBAY and search for THIS auction/sale:
253039367398
$2.43 (so heck ~ get 5 and give them as special gifts)!

DO NOT order the (lower cost) BLUE body versions because they are a pain with flashing and very confusing LEDs!

This puppy TELLS you the USB Voltage to your device (the BLUE LED reading) AND tells you how much CHARGE it's taking when you first connect your depleted device! In your case it's a keyboard...

As your device charges you will see that CURRENT (shown in RED) drop lower and lower until it reaches just a few milliamps... then you know it's done.

KNOW this charge rate will change from USB device to device. Also, do not expect the RED LEDs to go to zero... it's just your charger 'float-charging' your device.

It also tells you if your CHARGER is doing it's job! IF the voltage really sags to (4.2 volts in example) it's time to replace the charger! Your target voltage is very close to 5 voltswith your device connected.

There are 2 USB output jacks from this meter... the meter will tell you the TOTAL current demand for both items.

Anthony


2017 Mobile Power Detector USB Charger Battery Tester Voltage Current...

Nov 29, 2017 | Computers & Internet

Tip

Laptop battery life tip


Extend your battery life on your laptop, do not leave it plugged in and charging all of the time. When a laptop is constantly charging, it will deplete the cells on the battery. Two ways to combat this, charge your laptop fully and remove the battery while it is plugged in, or you can run your laptop on battery power a few times a week until the battery dies.

on Dec 12, 2009 | Computers & Internet

1 Answer

No Power with or without battery


The device requires current compartment observations. Ascertain that bateries in compartment, cables wires are traceable to the outs, and that visible malfunct objects are least are unavilable. Perform recharge on computer devices to restore battery cell capacity. Usually depleted current requires full recharges to last an entire duration with every feature powered off to attain process. After ascertaining the restroation capacities, usually the devcie should power on after charging else the battery requires replacement an aletrnate as depleted completely.

Feb 13, 2011 | Computers & Internet

1 Answer

I want to know how to completely deplete the battery before charging it again


Use your cell as long as its battery depletes completely itself or play Music, Games or call in order to deplete your battery completely.
When your cell gives "Empty Battery" or "Low battery" type warning for three times and turns off itself your cell's battery is empty then. Recharge it till its battery full to have more talk time then usually you have.

Aug 04, 2010 | LG AX245 Cellular Phone

1 Answer

2000 flhtcui after driving couple hours my charging system drops


Are you sure your gauge is not lying to you? Ride the bike until you see that your charging voltage has dropped. Then check the voltage directly across the battery with a meter. If it is indeed below the 14 volt mark, you are either drawing too much current or your alternator is not putting out enough.

To check the alternator, unplug the regulator where it plugs into the engine case. Down inside the plug in the case, you'll see either two sockets or two pins. Using a digital volt ohm meter (DVOM) put one lead to pin or socket and the other lead to the other pin or socket. Put the meter in the 50 volt AC range. The voltage coming out of the alternator is AC voltage, not DC. It is converted to DC by the regulator. Start the engine an bring the engine up to a high idle. You should read 32-40 volts AC. If so, you stator is good and working as it should.

Now, you're left with either something drawing too much current or a bad regulator. The book tells you how to check the regulator but you must use a specific type of meter or you'll get erronous readings. If you have added a lot of extra lights to the bike, this could be overworking the alternator. Check the ground on the regulator to the frame. It must be grounded well.

Apr 06, 2010 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Battery only charges upto 7%


Chances are the battery itself has been damaged. These batteries have several cells linked together, and if any of the cells fail then capacity drops accordingly. You may want to look to replacing the battery.

Aug 28, 2009 | Dell Inspiron 6400 Notebook

1 Answer

Hey


The sidekick has an issue with its charging port going bad. Do you get the orange light when you plug it in?

It about 80 dollars to get fixed or you can do a workaround for about 30 dollars.
What you need to get is a charging cradle that has a spare battery charging slot. This will you allow to charge your battery seperate from the phone. I also recommend getting a second battery so one can be charging at all times.
Here are some links for the charger and the batteries:
Sidekick 3 Battery Charging Cradle
New Spare Sidekick 3 Battery for Sale
Hope that helps

Dec 19, 2008 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

My sidekick 3 wont charge


Michael-
The sidekick has an issue with its charging port going bad. Do you get the orange light when you plug it in?

It about 80 dollars to get fixed or you can do a workaround for about 30 dollars.

What you need to get is a charging cradle that has a spare battery charging slot. This will you allow to charge your battery seperate from the phone. I also recommend getting a second battery so one can be charging at all times.

Here are some links for the charger and the batteries:
Sidekick 3 Battery Charging Cradle
New Spare Sidekick 3 Battery for Sale

Hope that helps

Dec 17, 2008 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Turn on problem


Some times, the charging cable from the laptop will not charge a fully depleted battery. If you have not already done so, try charging it using the wall charger that came with the phone.

Hope this works!

Aug 29, 2008 | Apple iPhone Smartphone

Not finding what you are looking for?
Electronics - Others Logo

Related Topics:

1,029 people viewed this question

Ask a Question

Usually answered in minutes!

Top Electronics - Others Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

Brad Brown

Level 3 Expert

18562 Answers

Tom Chichester

Level 3 Expert

61080 Answers

Are you an Electronics - Other Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...