OUPES B5 Extra Battery

Sale price$1,190.00 Regular price$1,400.00
Save $210.00
5.0
  • Include Extra Battery Cable in the box
  • Compatible with Mega 5 & Titan 5
  • 5040Wh Capacity
  • Smart App Control
  • Portable RV Power
  • Charge Anytime, Anywhere
  • Safety LiFePO4 Battery
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Sale price$1,190.00 Regular price$1,400.00
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5% of sales will be donated to the OUPES HELP project for those in need. Learn more >

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Fast shipping

Fast
shipping

30-Days Money Back

30-Days
Money Back

5+1 Years Warranty

5+1 Years
Warranty

Lifetime customer support

5 x 24H
support

More Than a Affordable Price. Service Included.

We don't lower prices by cutting service. We cut unnecessary markups — and invest in real support, local service, and long-term reliability.

US Local Warehouse

Fast shipping from West & East Coast warehouses.

30-Day Price Match

If the price drops within 30 days, we refund the difference.

Real Human Support (5x24H)

In-house support team — not outsourced, not AI bots.

30-Day Money Back

Changed your mind? Return it within 30 days. No questions asked.

US Local Repair Centers

Real repairs, handled locally.

Rewards & Community Support

Earn points, redeem rewards, and get help from real users.

Compatible with Mega 5 / Titan 5

Designed to expand your power setup, the B5 Extra Battery integrates perfectly with Mega 5 and Titan 5 for extended energy capacity.

Expandable Power with Modular Flexibility

Expand your Mega 5 & Titan 5’s capacity up to 45,360Wh with the B5 Extra Battery, offering customizable energy solutions tailored to your specific needs.

Mega 5 + B5 Titan 5 + B5

EV-grade LiFePO4 Battery

Equipped with an EV-grade LiFePO4 battery, the B5 offers 3500 charge cycles, ensuring long-lasting, stable energy for up to 10 years.

  • 3,500+ Charge Cycles to 80%
  • 10 Years Lifespan

Specs

B5 Extra Battery

Mega5 power station with B5 Extra Battery

BATTERY

  • Basic Capacity 5040Wh
  • Type LFP (LiFePO4)
  • Cycles > 3500 cycles to 80%
  • BMS Yes

INPUT

  • AC Charging recharge when connected with main unit

GENERAL

  • Connectivity WiFi 2.4GHz/Bluetooth
  • App Control Yes
  • Net Weight 96.67lbs (43.8kg)
  • Dimensions (L x W x D) 25.2*11.9*17.2in (641.5*304.5*437.5mm)
  • Operating Temperature 0℃~40℃ (30℉~104℉)
  • Storage Temperature 0℃~40℃ (30℉~104℉)
  • Certification UN38.3; MSDS
  • Warranty Up to 6 Years
    (Basic 5 years warranty.
    Register for 1 Extra Year Free!)
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In the Box

B5 Extra Battery ×1

Extra Battery Cable ×1

User Manual ×1

Warranty Card ×1

OUPES Warranty Card