Charge you Nintendo DS battery by using a charging dock, there are various styles available by various manufactures, all pretty much do the same thing, some have a nice glow when it's charging and either they plug into a power point or a USB port.
Also available are combination charging docks, example: 2 in 1 charger and picture holder and the 2 in 1 charger and game pack holder. These 2 in 1 charging docks utilize the Nintendo DS original charger as a power supply.
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