Each fully-charged Solar Milk battery can charge a mobile phone three or four times, or a radio once or twice.

每块充满电的太阳能牛奶电池可以给手机充电三到四次，或者给收音机充电一到两次。

youdao

And modern life adds to the burden, with one in five forgetting important passwords and a quarter not remembering to charge their mobile phone battery.

现代生活加重了这一负担，五分之一的人忘记了重要的密码，四分之一人记不起给手机电池充电。

youdao

That electrical charge we then pass through to a battery which you'll find in the heel of the boot for storage of the electrical power for later use to charge your mobile phone.

这些电荷会传至鞋跟处的一个蓄电电池上，在需要时可为手机充电。

youdao