Does it work without a Mango Power E?

No. It is an expansion battery made only for the Mango Power E station and has no output ports of its own.

How much capacity does it add?

It adds 3.5 kWh, doubling the E station's total capacity to 7 kWh.

The battery, an E+ connection cable, a user manual and a warranty card.

Mango Power lists it as a single expansion pack for the E; check the station's limits before adding more than one.

If you already own the E and want more runtime, it is the cheaper way to expand. A second station adds ports but costs more.

At Ampere Authority, for $1,099.00, as of our latest check.

Buyers like: Rated 5.0 by reviewers.

13 stores we checked sell it, including Outbound Power, Mango Power, Eco Solar Kits, Off-Grid Source, Wild Oak Trail.

$1,099.00at Ampere AuthorityChecked 1 h ago

Compared across 13 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.