Fully charged battery last

First of all take your battery to a place that sells batteries and have it checked. Sounds like your battery is only partially charging but the charger will show fully charged as it won't charge any more. Battery could be bad.

charger fault, had it myself

A fully working 18v Dewalt Battery will only take 90 minutes to just over an hour to fully charge from going flat. This fully charged battery should last about 4 hours of use (depending on the load). So the answer is 1 hour.

There is no such thing as a memory system in your battery. If you charge the battery until the green light on the charger comes on, that is as much as the battery can/will safely charge to. With Lithium batteries, they will fully charge whether they are at 75%, 50% or 10% capacity when placed on the charger and discharge to 0% if you use them that long. If you need the battery before the green light comes on and you use it, it will still fully charge when replaced on the charger. All batteries do discharge at different rates. Most not noticeably but a few will discharge fast enought to be noticable. If it affects your usage of the tool, you may want to exchange it or get it replaced under warranty because it will only get worse with age.

Hello there, the Nintendo DS Lite has four levels of brightness. The battery will last 15-19 hours on the lowest settings, and 5-8 hours on the brightest.This can also vary depending on the type of game activity."
So the DS should last the whole time in even on the highest brightness settings, if fully charged. Nintendo states that it takes 3 hours to fully charge the DS. 

hope this helped, also this site will also help you to get your ds battery to last for longer 

 http://www.ehow.com/how_2015000_extend-b…

good luck

basicaly you need a new battery sorry

hi sir... dont change ur batteries or go for new one... Its becuase the battery pin available in ur mobile device has got damaged... so its unable to store charges for a longer duration...Better give ur mobile for service and they will replace u with new pins.. dont waste in getting new batteries..

thank u rate me!!!

Try fully draining the battery and recharging it fully. If that does not work chances are the battery is going bad. How old is the dvd player ? If its still under warranty you might be able to get a replacement.

sometime you need to discharge the battery completely those charger are electronic they dont charge properly if the battery not fully discharge cheers

1. totally discharge the battery so it wont come on.

2. Charge the battery fully

3. Reset the player

Now check how long the battery lasts. If it is still 2 hours there is a problem with the battey and you will need to return the player.