How do I place 2 batteries in charger instead 0f 4?

first are you now using li batteries or nicad batteries
small chargers are battery composition specific
secondly-- chargers for aa /aaa batteries are cheap so get a new charger for the batteries in use

Battery is weak. Those lights are really useless...more a marketing gimmick. It almost sounds like it developed a memory...this happens when certain types of batteries are not fully discharged before being placed on the charger. Replace the battery and make sure to follow charging directions for that particular type of battery

Hi Suzanne! Follow these steps to check that your charger and battery are working properly.

1. Unplug the charger for at least 30 seconds.
2. Plug the charger back in. The blue light on the charger should flash once.

If the blue light flashes once this is an indication that the charger is still functioning properly. If the blue light does not flash, the charger will need to be replaced. Follow this link to order a replacement charger. LiNX Battery Charger

3. Place the battery in the vacuum and turn it on for 30 seconds. (even if it does not turn on or powers off)
4. Turn the vacuum off.
5. Remove the battery and place it in the charger.

If the light on the charger is solid blue this is an indication that the battery has been reset. Allow 3-4 hours for the battery to fully charge. The blue light will start to blink slowly to indicate the battery is fully charged.

If the light on the charger is flashing blue or there is no light at all this can mean that your battery needs to be replaced. Follow the link to order a replacement battery. LiNX Lithium Ion Battery

Hope this helps!

Here are some troubleshooting ideas:
1) Clean your battery contacts with a pencil eraser, both on the radio and the charger (gently).
2) Have your radio turned off when placed on the charger.
3) Does the light on the charger come on when you place the battery on the charger?
4) Try another battery on the same charger and see if it will charge a different battery.
5) Try the known good battery on this radio and see if the radio functions correctly with a known good battery.
6) Try a different charger with the questionable battery and see if you can get it to charge.
7) Be certain the insert in the BPR40 charger is turned the correct direction for the type of battery you have. When inserted correctly the rails should guide the radio into place, placing the external charge contacts on the radio against the charge contacts of the charger.
8) Check the date code on your battery, if more than 2 years old, replace it.

Best regards.

ismail the charger you bought should do the job. By stop charging do you mean the light on the charger turns from yellow to green? Your scooter has small batteries 12/12 and don't require along period of charging. Now the scooter has a heat sensor for the batteries and will cut off charging when temp of the batteries gets too high. The older charger could have overcharged your batteries and made them weaker instead of stronger. I would suggest you replace the batteries (2 12/12AH) and charge them with the new charger. Remember to reinstall the heat sensors on each battery when replacing. If you have a digital voltmeter set it to 200 v dc and put the leads into the 2 outer plugs in the charger port on the battery pack. You should read 24-26 volts dc when the batteries are fully charged anything less would mean weak batteries. Hope this helps you

If both lights are flashing it means the battery is defective so it won't charge it. By defective it could mean the battery is just worn out or there may be a short in the battery. If the battery is under warranty you can get it replaced at a Makita Service Center, if not you have to buy a new battery.

1.) take battery out. no charge cables connected.
2.) bend battery contacts up slightly
3.) place battery in at an angle, so that 4 contact leads are touching, but the metal backing of the batery is not touching the contacts that I had just raised
4.) click the 4 contacts together back and forth repeatedly, at a quick pace (about 2-3 times every second.)
5.) what a relief to see the amber light come on! Place the battery completely in, close cover, press power button, and happy to see the green light and a boot =)

did you try the following?

1. disconect you phone from power supply.
2. take the battery out
3. connect the phone back to the charger
4. place the battery back

if it does start charging (after 3 seconds you see the orange light) just leave it for about 60 minutes to charge. if you still get the red light, try again the 1-4 steps one or two times.

if it does not help you, you might need to replace the backup battery in the motherboard. this is a small CMOS battery, very close to the mini USB connector onboard. I think you should send the device to an HTC service center to do this kind of repair, since electronics ans soldering skills will be required for that job.
Good luck!

When the duracell lights blink during charging, AT YOUR OWN RISK, try a reverse charge. Instead charging positive to positive and negative to negative, try positive to negative and negative to positive. I did this for 2 minutes. This solved the problem. After the 2 minutes, I gave the batteries a normal charge. You will have to force the battery and charger contacts to touch.

I reccomend you take out the battery, and put it back in after 2 minutes. Next, if you are using a car charger, use the home charger instead. If you are using the home charger, use the car charger instead. The charger may be broken.