Tesla isn't the only company with the home battery on the way, with Mercedes-Benz unveiling its own home battery capable of holding 2.5kWh of electricity.
But, eight of these can be tethered together for a total of 20kWh, twice of the electricity that a single Powerwall from Tesla can hold. Merdeces-Benz is taking a much more modular approach to its battery thanks to the ability of hooking multiple of them together. 20kWh should be enough for most modest sized houses, with the company hoping to ship its home battery in September.
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