This battery is small in size and pretty light. It charges pretty fast in direct sun. It does Not charge with a cable to a power block(maybe this one is broken?). It is rated at 10,000 mAh but it does not compare to another (older) battery with the same rating. It is probably actually half of their 10,000 mAh rating. However, it puts out the expected power to charge the device plugged into it. All in all it has good solar capabilities but falls flat in other features.