Extend battery life on my MP4 player

[laserblazer]

I got a cheapo MP4 player so I can watch videos on plane journeys. Trouble is, the battery doesn't hold up for much more than an hour. Is their a cost-effective and compact plug in booster/charger that would help?

[jinnantonnixx]

USB phone charger (powered by batteries)?

[jinnantonnixx]

You could try one of these, but I don't know how successful it would be...

Laptop Self-Charger: Never Run Out Of Power | MakeUseOf Geeky Fun

[laserblazer]

You could try one of these, but I don't know how successful it would be...

Laptop Self-Charger: Never Run Out Of Power | MakeUseOf Geeky Fun

What a brilliant idea, shame it's got the wrong connector

[laserblazer]

Just received one of these 2x 3200mAh AA Battery R+ Emergency Mobile Phone Charger LED Flashlight 205D O | eBay I was going to make one but I don't think I could have done it any cheaper.