Mega 2 Pro

Comparison summary

AC output

2,500W rated / up to 3,600W peak or surge

Stored energy

2,048Wh

Battery chemistry

LiFePO4 (LFP)

Dimensions

18.8 × 11.6 × 11.6 in

Listed weight

48.8 lb / 22.1 kg

Price and availability

$699.00 sale price; previously $1,599.00; available from OUPES

Factory output & connection specifications

Battery capacity

2,048Wh

Rated AC output

2,500W

Peak / surge output

3,600W

UPS / backup transfer

<20 ms, 2,500W UPS/EPS

Basic Capacity

2048Wh.

Expansion Capacity

Up to 10.24kWh with 4 B2.

AC Output Power

2,500W (3,600W Boost).

AC Outlets

4*NEMA 5-20R (120V/20A). 1*TT-30R (120V/30A).

USB-A Output

2*USB-A (18W Max).

USB-C Output

2*USB-C (PD 140W per port).

12V DC Output

2*Car Lighter (12V/10A). . INPUT .

AC Charging

1,800W.

AC Charging

900W.

USB-A Output

4*USB-A (18W Max).

USB-C Output

2*USB-C (PD 100W per port).

12V DC Output

2*DC 5521. 1*Anderson (12V/30A). 1*Car Lighter (12V/10A). . INPUT .

AC Charging

rechargable when connected with main unit.

The Most Powerful 1,000W DC Power

Ditch bulky adapters. Directly run RV DC appliances, 3D printers, or high-draw DC appliances with 12-80V/30A Max Anderson bidirectional port.

Future-Ready Power with OTA

Fix bugs remotely and boost efficiency without lifting a finger; your Mega 2 Pro evolves through the latest firmware.

Factory charging & battery specifications

Battery chemistry

LiFePO4 (LFP)

Cycle life

4,000+ cycles to 80%

Charging

1,800W fast AC; 1,000W solar; 2,800W combined AC + solar

Cycles

> 4000+ cycles to 80%.

Solar Charging

1,000W Max, 12-80V DC. MPPT: 18-80V, 30A Max.

Solar Charging

2,800W Max. . . GENERAL .

Pass-through Charging

Yes.

Cycles

> 3500 cycles to 80%.

Solar Charging

2100W max, mppt:18V-140V, 15A max. . GENERAL .

Five Fast Recharging Way

100% recharge in just 52 minutes via AC+Solar, recharge in 2 hours under the sun or recharging in 2.75 hours with 800W Alternator charger.

Factory dimensions & operating specifications

Listed weight

48.8 lb / 22.1 kg

Dimensions

18.8 × 11.6 × 11.6 in

Net Weight

48.8lbs (22.1kg).

Dimensions (L x W x D)

18.8*11.6*11.6in (468*294*296mm).

Operating Temperature

0℃~40℃ (32℉~104℉).

Storage Temperature

20℃~60℃ (-4℉~140℉).

IP Grade

IP21. . BATTERY .

Net Weight

41.8lbs (18.9kg).

Dimensions (L x W x D)

18.1*10.6*10.0in (460*270*255mm).

Operating Temperature

0℃~40℃ (30℉~104℉).

Storage Temperature

0℃~40℃ (30℉~104℉).

Operating Temperature

4℉ - 185℉ (-20°C - 85°C). Best

Working Temperature

77℉ (25℃).

IP Grade

IP65.

Factory ownership, control & protection specifications

Warranty

5 years; free 1-year extension available after registration

UPS/EPS

< 20ms, 2500W.

Connectivity

WiFi 2.4GHz/Bluetooth.

App Control

Yes.

Certification

UN38.3; MSDS.

Warranty

Up to 6 Years. (Basic 5 years warranty. . Register for 1 Extra Year Free!).

Warranty

Up to 6 Years. (Basic 5 years warranty. Register for 1 Extra Year Free!). . POWER . Maximum Power 240W. Cell Lamination ETFE (Ethylene tetrafluoroethylene). Cell

Warranty

12 Months. . Download Manual > Download Manual > Download Manual > .

Run 99% Appliances with 3600W Boost

Handle everything from fridge to microwave with a 2,500W base and 3,600W Boost Mode output.

Reliable 20ms UPS & 2500W Pass-through

Simultaneously charge and power your gear without interruption, backed by a 20ms UPS for lightning-fast backup.

Smart APP Control

Take full control with remote monitoring and smart scheduling; manage your energy flow from anywhere.

Additional factory specifications

Type

LFP (LiFePO4).

BMS

Yes. . OUTPUT .

Type

Pure Sine Wave.

Type

Monocrystalline Silicon. Cell Efficiency ≥ 23%. Open Circuit Voltage (OCV) 24.6V (Vmp 20.5V). Short Circuit Current (Isc) 12.3A (Imp 11.7A). . GENERAL . Connector Standard MC4 Connector. Weight 18.48lb (8.4kg). Cable Length 196.8 inches. Dimensions (Unfolded) 99.5 x 23.2 x 1.4in (2529 x 590 x 35mm). Dimension (Folded) 26.1 x 23.2 x 2.4 (665 x 590 x 60mm).

Expandable Up to 10.24kWh

Expand your power in the future when you need more power

Official product questions & technical answers

I noticed the solar input power of Mega 2 pro is 1,000W, down from 2,100W on the old Mega 2. Could you explain why that change was made?

Sure thing! The main reason we adjusted the power is that we’re moving away from those theoretical parameters that look good on paper but are hard to actually achieve. Instead, we want to give you a power level that’s reliable and consistent in real use. Let me break it down for you:. 1. The Mega 2: That 2,100W is technically the maximum theoretical solar input, but you’ll rarely hit that in real life. Its solar input specs are DC: 12-148V, 15A Max, 2100W Max. If you use our 240W solar panels (specs: OCV 24.6V, Vmp 20.5V, Imp 11.7A), you can connect up to 5 in series. That gives you a theoretical input of 1200W, and after accounting for line transmission and energy conversion losses, the actual input is around 1,000W. 2. The Mega 2 pro: While 1,000W seems lower, it’s the actual power you can consistently get. Its solar input specs are DC: 12-80V, 30A Max, 1,000W Max. Thanks to the larger input current, you can connect the solar panels in a 3-series and 2-parallel setup. That gives a theoretical maximum input of 1440W, and after losses, the actual power stays steady around 1,000W. Also, from what we found in market research, 1,000W is the sweet spot for 2kWh-class energy storage power supplies. It lets you fully charge in about 2 hours, keeps the equipment running stably, and even extends its service life. . For higher solar input, you can add a B2 Extra Battery to unlock an independent 2,100W solar input.

Can I leave the Mega 2 Pro connected to the solar panels overnight?

Yes, it is safe to leave the Mega 2 Pro connected to your solar panels overnight. We've optimized the Mega 2 Pro's internal circuit design to enable 24/7 automatic charging management, so the MPPT controller will stop charging when there's no sunlight and automatically resume when the sun returns. This will not cause any damage to the unit or your panels.

Does the Mega 2 Pro support pass-through charging?

Yes. The Mega 2 Pro supports pass-through charging. However, in bypass mode, AC charging input plus all outputs should not exceed 2400W.

Can I connect the Mega 2 Pro to a G5 Extra Battery?

No. The Mega 2 Pro is part of Mega Series and is exclusively compatible with B2 Extra Batteries (2,048Wh per unit).

I just received my unit—what are the first steps?

To ensure peak performance and a seamless experience, we recommend the following:. Read the Manual: Familiarize yourself with the safety guidelines and features. - Watch & Learn: Visit our official YouTube channel for video tutorials. Join the Community: Connect with fellow owners and swap tips in our Facebook User Group. Condition the Battery: For the best long-term health, please complete one full charge and discharge cycle before your first regular use.

Can I Use Third-Party Solar Panels?

Yes, third-party panels are compatible. Ensure the Open Circuit Voltage is 80V , current is 30A , and the total wattage matches the unit's MPPT specifications for safe operation.

Official feature details