By reducing the amount of computation done on board the device, caching speeds things up and saves battery life in the process.

通过减少设备上的计算量，高速缓存会起到加速的作用，并且还会延长电池寿命。

youdao

Electrolyte: in gel state, no delamination, battery electrolyte circulation performance is good; The electrolyte density low, slow on board gate corrosion, floating battery life is long.

电解质：呈凝胶状态，电解液无分层、电池循环性能好；电解液密度低、减缓对板栅腐蚀，电池浮充寿命长。

youdao

Is hidden under the hood, hot-wired to the battery-it works very well and it is easy to hook up continuous power, "writes one customer on AccuTracking's message board, who is tracking her husband."

该公司的一个顾客在公司网站的留言版写道：“我把电话藏在引擎盖下边，并插在汽车电池上——真的很管用，而且挂接不间断电源也很容易。”这位女士是在追踪她的丈夫。

youdao

This configuration gives it all wheel drive and also allows the ECU to either send power to or retrieve power from (in the form of regeneration) either motor to recharge the on-board battery pack -- which can also be juiced up by plugging into the wall.

ENGADGET

It also uses a tether and can stay aloft for 12-hours on a single ground-station battery, letting it spy from afar with on-board HD, night-vision and thermal cameras.

ENGADGET: CyPhy Works reveals tethered flying bots that can spy on you indefinitely (video)

The 22 kW on-board charger enables a completely empty battery to be fully charged in less than an hour.

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