Can portable solar charger charges the DSLR camera battery? especially need for trekking.?

how much Amp is needed to charge DSLR battery?? i am planning to buy Revolve xeMilo or xeMini series portable solar charger (http://www.revolveusa.com/index.php?p=1_17_xe-series) . Any device with an input power requirement of 5V DC and 1.2A (1,200mA) or less is compatible with χeMini. Any device with an input... show more how much Amp is needed to charge DSLR battery?? i am planning to buy Revolve xeMilo or xeMini series portable solar charger (http://www.revolveusa.com/index.php?p=1_17_xe-series) .

Any device with an input power requirement of 5V DC and 1.2A (1,200mA) or less is compatible with χeMini. Any device with an input power requirement of 5V DC and 2A (2,000mA) or less is compatible with χeMilo. so can they charge DSLR camera (normally 7.4V battery of most DSLR cameras). if not, can you suggest other portable solar charger mainly for trekking purpose.
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