Tesla isn’t the only one building giant batteries. Mercedes-Benz has its own equivalent to the big battery that is Tesla Powerwall but is taking a slightly different tack.
Mercedes is creating smaller batteries that each hold 2.5kWh of electricity but combine eight of them and you get 20kWh – that’s twice what Tesla’s Powerwall offers.
This modular approach makes it more versatile for different setups. Larger homes could install more packs, smaller homes less. The Mercedes battery packs will only ship in September and might be your best bet, considering Tesla’s is sold out all through mid-2016.