About 20 hours fully charged, althought the volume level matters, so if you hav lo volume the battery will last a little longer. One of the other things that can use up battery life is bright flashing games with alot of bright lights flashing sounds and long periods of sound, for exaple Guitar Hero..
the battery is not charged wethin the car , the battery is first taken out from the car and then it is charged............. You can get a charger that plugs into the cigarette lighter and back feeds to the battery. Takes a while to charge the battery that way.
The XL's internal battery will need to be charged using the plugin charger.
First, check if you battery if properly charged, and 95% of the time that is the reason.
If you are watching netflix on your iphone or another device just goto the settings on that device and turn up the brightness on there or if you are watching it on your tv goto the tv menu and turn up the brightness and the same with a laptop etc.
Corroded battery cables. Remove the battery cables, negative first, and clean the cable connections and the battery posts. If that does not help the battery needs charging or is defective.
Rechargeable batteries normally have to be charged fully before first use.
I suggest you get a battery hydrometer and check it periodically until it is charged. Overcharging depletes water from the battery. Undercharging shortens the battery life.
the battery may be getting old or you somehow overcharged it and destroyed the battery, or you used it before you charged it when you first got it. If you use it before charging it when you first open it, you could severely shorten battery life. Not just for a DS or whatever Nintendo thing you mean, but for anything chargeable.
The battery should drain slowly on an iPhone 5s. If the battery was charged correctly the first time. It should take around 10 hours to drain.
It could be a number of things. First check that the battery is fully charged.
well, most battery chargers can discern the anode and the cathode, when first charge the battery, the convertor of the charger transform the alternating current (AC) into Direct current(DC), that means the charger "sees" the voltage of the battery, in fact, most charger can transform the AC to one/some fixed DC Voltages. and if you reverse to enter the battery, it doesn't matter, the battery can be normally charged, this case was considered when designing the charger, don' t be worry.
Check the date code on the battery. It is the first 2 characters. The second character is the year. Example D9 would indicate the battery was made in 2009. AC/Delco batteries reverse this so the first character is the year.