OUPES Mega 2 Pro

Last updated: October 20, 2026

OUPES Mega 2 Pro

4.1/5#6 of 30 in large power stations
4.1

A 2kWh LiFePO4 station with an RV outlet and large expansion for home backup and RV owners on a budget.

2,048 WhCapacity
2,500 WAC output
48.8 lbWeight
LiFePO4Battery
$0.34Price / Wh

Check price at OUPES$699

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

Pros

TT-30R outlet plugs straight into an RV or a home transfer switch
Expands to over 10kWh for long outages
1000W solar input refills it in a sunny afternoon
Low price for 2kWh of LiFePO4 with a 5-year warranty

Cons

Heavy at nearly 49 lb
Surge rating is not published
No DC5521 barrel ports

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 $0.34 per rated Wh94
Tested capacity not yet independently tested (neutral score used)50
Battery life LiFePO4, 4,000 cycles, 5-year warranty100
AC output 2,500 W continuous AC58
Charging speed full AC charge time not published (neutral score used)50
Portability 93 Wh per kg (48.8 lb (22.1 kg))87
Solar input 1,000 W max solar input40
Features UPS (20 ms), expandable, 140 W USB-C, app100

Specifications

Battery
Rated capacity	2,048 Wh
Chemistry	LiFePO4
Cycle life	4,000 4000+ cycles to 80%
Expandable	Yes, up to 10,240 Wh
Output
AC output	2,500 W
Boost mode (resistive loads)	3,600 W
AC outlets	5 total
120V 20A outlets (NEMA 5-20R)	4
RV 30A outlet (TT-30R)	1
USB-C ports	2 (up to 140 W each)
USB-A ports	2
12 V car outlet	Yes
DC5521 ports	0
UPS / pass-through	Yes (20 ms switchover)
Charging
AC charging	1,800 W
Max solar input	1,000 W
Solar input voltage	12-80V (MPPT 18-80V, 30A)
Build
Weight	48.8 lb (22.1 kg)
Dimensions	18.8 x 11.6 x 11.6 in
App	OUPES app (Wi-Fi/Bluetooth)
Warranty	5 years

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For drone and camera users already in the DJI ecosystem who want high USB output and 3000W AC in a 2 kWh unit.

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Manufacturer

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