Charges but only holds a charge for about 1/2 hr running time. the manual i have says it has a external charger but mine is onboard. thanks ---- wayne

Mine is an Invacare M51 Pronto Surestep with an onboard Winsunny battery charger. My charging lights are solid red and green/ yellow. Depending on if it is charging or not. What kind of charger do you have?
I have to replace my charger because it is not working. My green light is staying green while charging even though my joystick is showing my batteries are depleting and I just got new batteries. sigh.

The charger is defective. I would not try to charge it externally because if you charge it with a higher rate of current (amperage) than the original charger, it could explode or leak.

Sometimes, the charger will overheat and fail. Try unplugging the charger overnight, plug it back in the next morning, then place the battery in the charger after waiting a few moments. Normally, this will correct the charging discrepancy.

I had this exact same problem after having my M91 in the shop. The repair man said that the onboard charger was bad, so he sold me an offboard charger to charge through the arm. That didn't change anything. I finally took it apart myself and discovered that there was a cord leading from the onboard charger to the batteries that the repair person had left unplugged when he installed my new batteries.
What I'd thought was "fast draining" of the batteries was actually the batteries self-charging overnight (which they will do a little bit if you let them sit). Of course, this might not be your problem, but I'd say at least look at it as a possibility.

Take the batteries to a battery shop or a Battery plus store have them load test the batteries. Deep cycle batteries are different from normal batteries. Normal batteries are design for max output for short periods of time, Deep cycle batteries are designed for a modest output for long periods of time. My batteries are rated at 35 amp/hr.. Basically a load tester places a load in amps [cranking amps] on the battery. How many cranking amps depends on if there is a voltage drop when you apply the load. I can apply 480 cranking amps before my voltage drops. What i do is load test a new battery of the same type to find out the cranking amps. You will not find a cranking amp rating for aq deep cycle battery but retail places have load testers that read in cranking amps. Use only deep cycle batteries in scooters, garden tracker batteries will not last. If the batteries are ok test the charger. A CHARGER KNOWS THE CHARGE OF THE BATTERY BY BATTERY RESISTANCE. As a battery charges its resistance get bigger. Once the battery reaches a preset resistance the light goes solid. You can have the charger checked by a battery shop. To properly charge a battery a charger will put out 27volts @ 4amps, they can easily test for voltage. Now if the charger is built in there is going to be an external fuse find it, check it. hope this helps

This seems to be a common problem for the env2. If you hold your charger a certain way in the phone does it charger? Is the charger port broken or damaged?

If so the easiest workaround is to get an external battery charger and extra battery to charge the phone.

Check out the following link for information on the battery charger and other options for the env2 charge issue.

Lg Env2 External Battery Charger Fix

As long as the charger voltage and the battery voltage match (7 volts) there should be no problem. A fast charger just runs more current thru the battery (per unit time) than a not-so-fast charger. If you notice the battery getting really hot when it's charging (like too hot to touch), stop using it.

There are only a few possible reasons...

1. The battery is not being charged properly
   
2. The battery needs to be cycled
   
3. The batter is defective

Option 1 - If available try another charger
Option 2 - Run the device until the battery totally dead\depleated of power. Then charge the battery for the maximum charge time suggested by the manufacturer. If you do not have the manual and cannot find their website then attempt to charge the unit for apptox 24 hours. If this does not work then it is either option 1 or 2.
Option 3 - If available try another battery in the device and see if it is being charged and if it is holding the charge. If Yes, then the battery need to be replaced.

Return to the carrier for warranty repair.

If you are out of warranty there are some options you can choose from

1. Get repaired
2. New phone
3. external charging source

The external battery charger runs about 20 dollars on ebay with an extra battery.

Check out the following link to find more about these options

Samsung BlackJack II charging problems

All right. The Sidekick 3 has a known charging issue that crops up on some phones. If you are under warranty, call t-mobile and get it fixed. If not, the repair is going to run 100+ to fix the charging port.

A fast and simple solution is to by an external charger and an extra battery. They run about 30 bucks total on ebay.

Check out Sidekick Battery Chargers.

Be glad the battery is easily removable. The original sidekick and sidekick II had internal batteries that are a pain in the butt to remove!!!