As a rule of thumb, don’t run a car you aren’t planning to drive for fewer than 10 minutes. An external battery maintainer, ...

When we saw [Max.K]’s automatic NiMh battery charger float past in the Hackaday tips line, it brought to mind a charger that might be automatic in the sense that any modern microcontroller based ...

Speedy new chargers from Chinese automaker BYD take just 5 minutes to restore 400 kilometres of an electric car’s range ...

Also known as mobile chargers or battery packs, these nifty gadgets serve as a lifeline to your dying electronics by recharging battery power when needed. Even if they’re not a daily necessity ...

Car battery chargers are also especially useful if you ... It also has a thermal sensor to account for external temperatures, so you can use it from -4°F/-20°C to 104°F/40°C.

but one thing that’s certain about choosing a portable charger is that you want to know where it comes from, so you don’t fry your phone. You can find tons of battery packs from unknown brands ...

When it comes to helping a car with a dead battery, there are two approaches to take – a portable jump starter or a battery charger. Both of these products bring your battery (and car ...

Massachusetts will offer owners of compatible EVs a free bi-directional charger to participate in ... with some sort of capability to use the car's battery as a giant power bank.