If you want more than 3 kWh, you can add more battery modules -- up to 10.5 kWh. The battery units themselves are slim -- just 2.8 inches wide -- and are flat, at 13 inches by 29 inches.

It might have been a long time since you last had to grapple with a flat car battery, but when it does happen it can be a major inconvenience. Unable to start your car can ruin your day ...

Frozen doors, dead batteries, or flat ... battery and keep battery posts and cable connections free of corrosion. If your battery is older than 5 years, it should be replaced. Just starting your ...