How long does the DELTA 3 take to charge?

About 56 minutes to full from an AC outlet, with 80% reached in roughly 30 minutes.

Can I run a space heater or microwave on it?

Its 1800W AC output covers most microwaves, kettles and space heaters, but runtime at that draw is short on the 1024Wh battery.

How does it compare with the DELTA 2?

The DELTA 3 moves to a LiFePO4 battery with a 4000-cycle rating, faster charging and IP65 battery protection, where the DELTA 2 uses a shorter-life chemistry.

How much capacity can I add?

Up to about 5kWh total with compatible expansion batteries, which are sold separately.

Is it good for home backup?

Yes for short outages and essentials like a fridge, router and lights. For multi-day whole-home backup you need the expansion batteries.

What comes in the box?

The power station, an AC charging cable and a car charging cable. Check the listing for any solar cable.

Where is the DELTA 3 Portable Power Station cheapest?

At Walmart, for $440.30, as of our latest check.

Generic

DELTA 3 Portable Power Station

Best price now

$440.30at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

Generic

DELTA 3 Portable Power Station

Best price now

$440.30at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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

Price facts

Last seen at $440.30 at Walmart on Nov 9.

Our take on the DELTA 3 Portable Power Station

The DELTA 3 is a 1024Wh portable power station built on a LiFePO4 battery rated for 4000 cycles to 80% capacity. It delivers 1800W of AC output, a 100W USB-C port, and fast charging that reaches 80% in about 30 minutes and a full charge in about 56 minutes. Capacity expands to roughly 5kWh with add-on batteries, and the battery pack carries IP65 protection. It suits home backup, camping, RV trips and emergency use, and its fast recharge and expandability put it ahead of many 1kWh-class rivals that charge slower and cannot grow.

Best forHome backup during outagesCamping and RV tripsEmergency power kitsOwners who want expandable capacity

Pros

Large 1024Wh LiFePO4 battery with 4000-cycle rating
1800W AC output runs most household appliances
Recharges to 80% in about 30 minutes
Expands to about 5kWh with extra batteries
100W USB-C output for laptops and phones
IP65 battery protection

Cons

Heavier and bulkier than small 500Wh units
Full 1800W loads drain the battery quickly
Expanded capacity needs extra batteries bought separately
Fast charging can be loud and draws a heavy AC load

DELTA 3 Portable Power Station prices at every store

WalmartNew
In stockSold by wongReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$440.30Free shippingChecked Nov 9
Visit Walmart

About the DELTA 3 Portable Power Station

The DELTA 3 is a portable power station built around a 1024Wh LiFePO4 battery. It delivers 1800W of AC output and 100W of USB-C output.

It charges to 80% in about 30 minutes and to full in about 56 minutes. Capacity can be expanded up to 5kWh. The battery is rated for 4000 cycles to 80% capacity and has IP65 protection.

It can be used for home backup, camping, RVs and emergencies.

Battery capacity: 1024Wh
Battery type: LiFePO4
AC output: 1800W
USB-C output: 100W
Fast charging: 80% in about 30 minutes; full charge in about 56 minutes
Expandable capacity: Up to 5kWh
Cycle life: 4000 cycles to 80% capacity
Battery protection: IP65
Uses: Home backup, camping, RVs, emergencies

Questions and answers

How long does the DELTA 3 take to charge?: About 56 minutes to full from an AC outlet, with 80% reached in roughly 30 minutes.
Can I run a space heater or microwave on it?: Its 1800W AC output covers most microwaves, kettles and space heaters, but runtime at that draw is short on the 1024Wh battery.
How does it compare with the DELTA 2?: The DELTA 3 moves to a LiFePO4 battery with a 4000-cycle rating, faster charging and IP65 battery protection, where the DELTA 2 uses a shorter-life chemistry.
How much capacity can I add?: Up to about 5kWh total with compatible expansion batteries, which are sold separately.
Is it good for home backup?: Yes for short outages and essentials like a fridge, router and lights. For multi-day whole-home backup you need the expansion batteries.
What comes in the box?: The power station, an AC charging cable and a car charging cable. Check the listing for any solar cable.
Where is the DELTA 3 Portable Power Station cheapest?: At Walmart, for $440.30, as of our latest check.