Prosper
Battery upgrade

See your battery price and payment.

Step 1 of 3Battery estimate

01 / Pick your battery count

How many batteries?

Choose how many Powerwall 3 batteries to include in this example.

2Powerwall 3 batteries
Questions people often ask

How much will it cost?

It depends on how many batteries your home needs and what work is needed to connect them. This page gives a starting example. We check your existing system before giving you a final price.

Why wasn't a battery added before?

Your panels and battery may have been priced separately. The right battery also depends on your current equipment, wiring, and home. We check those things before recommending an upgrade.

Does checking my rate hurt my credit?

The initial rate check has no credit score impact. A full loan application may involve a hard check.

What is covered?

The battery upgrade includes a 25-year all-inclusive warranty. We connect it with your existing solar system and check that the finished system is in good working order. Your agreement explains the warranty terms.