Not sure if it is charging

If it is a lithium battery, please be aware that lithium batteries lose 20% of total capacity per year; (under the _best_ circumstances).

How old is the battery?

The tablet should show if the AC charger is connected. Chances are it's the battery.

Locate the two wires from the circuit breaker attach one wire (black if marked) to the negative post of the rear battery and attach the other wire (red if marked) to the positive post of the front battery. Locate the two wires coming from the power module plug with a red and black wire. Attach the red wire to the rear battery positive post and the black wire to the front battery negative post. attach the joystick to the nine pin plug at the rear of the chair and turn it on. You should have power at the joystick and the chair should work. Disconnect the joystick put the shroud cover back on grease the seat post and reattach the seat then plug in the joystick and charger plug at the rear of the chair. Charge the batteries before use and charge them overnite for the next 20 days. If you use the chair daily charge your batteries everynite while you sleep unplug in the morning. If you don't use the chair daily charge at least once per week or after you use the chair. Always put the chair up fully charged if you are going to be out of the chair for an extended time the disconnect the batteries at the large plug going to the power module Hope this helps you

Rather than beating your head against the wall, return it for exchange. A new computer should charge with no problem.

I assume you charged it while off overnight first as the book generally states.

How to charge the Jensen MP3 player - Model smpg-v2bub

Ignore instructions that came with it - they don't work.

Here's how to charge - I discovered this with mine:
1. When computer is on and at windows screen, attach cable from computer to mp3player with mp3 turned player off. It will immediately show you a connect screen on the mp3 player.

2. pressed the left side middle button twice - this will turn it on and go into music like you're playing a song.

3. Now turn the mp3 player on by switching the button on the right side of the device to the on position. It will suddenly show you it's charging - the battery on the front of the mp3 player will have a signal pulsing through it.

4. It will turn off after one minute. It's literally half charged now. Strange I know. Repeat from step 1 and it will fully charged.

If it doesn't fully charge after it turns itself off after 1 minute the 2nd time, then repeat steps from 1, one more time, but this time when it turns itself off after a minute, still leave it connected to the computer for 10 mins even though it looks like it's off. Then disconnect it physically from computer, turn it on with the on button on the right side, press the left side middle button twice and look at the battery on the screen - it should be fully charged now.

The camera will show a low-battery indicator when the batteries start to run down. The only indication of a full charge is the lack of the low-battery indicator on the screen. There is nothing you can set up.

Hi, have olympus fe-280 camera. Battery on screen shows full but shows empty (an inch strip) in middle. I have charged it. Even bought a new battery. Can anyone help. Thank you. ...... I want thinking I may have two faulty batteries and just need to buy another one?!

Here is a replacement source

The batteries are covered under warranty for three years. Sony batteries are know for not keeping a good charge after a few years.

If there not holding a charge, they wouldn't appear on the LCD screen at all. I the AC power is working fine, then that probably isn't the source for not getting a charge.

You could try lightly scraping the contacts on the battery and see if that makes a difference and recharge them.