Name: Generac GB1000
Brand: Generac
Price: 899.99 USD

3.1/5#38 of 39 in mid-size power stations
3.1

For buyers who want a Generac-backed 1 kWh station that can run 1,600W appliances and parallel with a second unit; LiFePO4 rivals offer more cycles and faster charging for the money.

1,086 WhCapacity
1,600 WAC output
29 lbWeight
Li-ion NMCBattery
$0.83Price / Wh

Check price at ecobee (Generac)$899.99

Price checked October 20, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Runs 1,600W loads such as a microwave or space heater, with 3,200W starting surge for motors
Built-in solar controller takes up to 468W, so panels plug in without extra hardware
15W wireless pad charges a phone without a cable
Two units can be linked with Generac’s paralleling kit for nearly double the output

Cons

Slow 450W wall charging: about 2.1 hours to reach 80%
NMC battery rated for only 800 cycles to 80%, far fewer than LiFePO4 rivals
Not designed for UPS use, so it can’t protect a computer or modem through an outage
Only three AC outlets and 65W USB-C ports
No independent capacity test published yet

How it scores

The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Value $0.83 per rated Wh36
Tested capacity not yet independently tested (neutral score used)50
Battery life Li-ion NMC, 800 cycles, 3-year warranty23
AC output 1,600 W continuous AC74
Charging speed full AC charge time not published (neutral score used)50
Portability 83 Wh per kg (29 lb (13.2 kg))68
Solar input 468 W max solar input33
Features no UPS, expansion or app0

Specifications

Battery
Rated capacity	1,086 Wh
Chemistry	Li-ion NMC
Cycle life	800 to 80% (0.5C charge, 1C discharge at 25 C)
Expandable	No
Output
AC output	1,600 W (3,200 W surge)
AC outlets	3 total
120V 2-prong outlets (NEMA 1-15R)	3
USB-C ports	2 (up to 65 W each)
USB-A ports	2
12 V car outlet	Yes
UPS / pass-through	No
Charging
AC charging	450 W
Max solar input	468 W
Solar input voltage	10-28V, 30A max (shared DC/solar input)
Build
Weight	29 lb (13.2 kg)
Dimensions	14.1 x 10.2 x 12.0 in
Warranty	3 years

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BLUETTI $899

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Goal Zero Yeti 700

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Amazon $699.95 Goal Zero $699.95 BioLite $699.95

$699.95

Duracell G800

#39 in Mid-size2.5Full review

For occasional home backup and outdoor gatherings where the familiar brand, easy recharging and design matter more than price or battery life. Made under license by Southern Telecom; LiFePO4 stations at this price last far longer.

Amazon $699 Duracell $699

$699

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