Top critical review
20 people found this helpful
Wary of low power if wanting multi-voltage!
on 17 January 2015
Beware the Amperage if bought for multi-voltage solution..!
I bought this battery to power my USB devices (iPhone, iPad) AND as an external battery for my Microsoft Surface Pro. I purchased a cable which was Microsoft proprietary power connector to the standard DC output, so was ready to go (although researching the exact size of the battery's output connector was not easy)
If you want it purely for USB devices it is brilliant - HUGE capacity, well built, quality product. But, it would not charge my Surface Pro. The reason is that the 12V output only provides 1.5A. That is far too little to charge the Surface Pro. I returned this and bought the previous model, which works absolutely fine as it outputs up to 4A on the 12V rail.
The previous model is here:
Hope this is helpful for people in the same position.