Expansion Batteries

Shop expansion batteries that add capacity to EcoFlow, Anker SOLIX, Jackery, BLUETTI, and Pecron power stations and home backup systems. Check each battery's listed compatibility before you buy.

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Anker SOLIX BP3800 Expansion Battery | For SOLIX F3800 & F3800 Plus

6 reviews

from $1,799.99

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Customer Favorite

Perfect for Off-Grid Use

Extend Your Anker SOLIX F3800 Or F3800 Plus Into A Home Backup Power Beast With The BP3800 Expansion Battery Imagine this: a blackout rolls in, plu...
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from $1,799.99

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BLUETTI B300K2 Expansion Battery | 2764.8Wh | For Apex 300

7 reviews

$1,099.00

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Customer Favorite

Perfect for Off-Grid Use

The BLUETTI B300K2 Adds 2,764.8Wh of LiFePO4 Storage to Your Apex 300 The BLUETTI B300K2 Expansion Battery is the B300K configured for the Apex 300...
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$1,099.00

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EcoFlow DELTA 3 Series Smart Extra Battery

6 reviews

Original Price $599.00

Current Price $389.00

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Perfect for Off-Grid Use

Ideal for Home Backup

The EcoFlow DELTA 3 Series Smart Extra Battery Adds 1024Wh of LFP Capacity to Your DELTA 3 Power Station The EcoFlow DELTA 3 Series Smart Extra ...
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Original Price $599.00

Current Price $389.00

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Jackery Battery Pack 5000 Plus

4 reviews

from $2,599.00

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Just Arrived

Ideal for Home Backup

The Jackery Battery Pack 5000 Plus Provides Long-Lasting Power And Versatility For Your Explorer 5000 Plus Power Station The Jackery Battery Pack 5...
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from $2,599.00

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EcoFlow DELTA Pro Ultra Series Smart Extra Battery | For DELTA Pro Ultra & Ultra X

35 reviews

from $2,349.00

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Just Arrived

Ideal for Home Backup

The EcoFlow DELTA Pro Ultra Series Smart Extra Battery Adds 6,144Wh of LFP Storage to Your Home Backup System The EcoFlow DELTA Pro Ultra Series...
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from $2,349.00

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Anker SOLIX C2000 Gen 2 Expansion Battery

1 review

Original Price $999.99

Current Price $749.99

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Just Arrived

Maximize Your Anker SOLIX C2000 Gen 2 With The C2000 Gen 2 Expansion Battery Unlock energy independence with the Anker SOLIX C2000 Gen 2 Expansion ...
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Original Price $999.99

Current Price $749.99

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Anker SOLIX F3000 Expansion Battery

2 reviews

from $1,199.99

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Just Arrived

Perfect for Off-Grid Use

Double Your Power. Expand Your Possibilities. Unlock Extended Energy With The Anker SOLIX F3000 Expansion Battery Looking for extra power you can c...
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from $1,199.99

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Jackery Battery Pack 3600 Plus

No reviews

from $1,349.00

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Expand Your HomePower 3600 Capacity With The Jackery Battery Pack 3600 Plus Jackery HomePower 3600 Plus Portable Power Station or Jackery HomePower...
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from $1,349.00

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EcoFlow GLACIER Plug-In Extra Battery

1 review

Original Price $299.00

Current Price $174.00

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The EcoFlow GLACIER Plug-In Extra Battery Adds 298Wh of Cordless Power to Your GLACIER Fridge The EcoFlow GLACIER Plug-In Extra Battery, which E...
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Original Price $299.00

Current Price $174.00

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Pecron EP3800-48V Expansion Battery | 3840Wh for E1500LFP | E3600LFP | E1000LFP | E2400LFP | F3000LFP | E3800LFP

No reviews

$799.00

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The Pecron EP3800-48V Expansion Battery Delivers 3,840Wh of LiFePO4 Capacity For Longer Runtime At Home, On The Road, Or Off-Grid Add serious ener...
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$799.00

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Anker SOLIX B6000 Battery Module | For E10 Whole Home Backup System | 6kWh LiFePO4 Battery

No reviews

from $2,499.00

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Pair Additional Anker SOLIX B6000 Battery Modules With The E10 To Provide Scalable, True Whole-Home Backup Power The Anker SOLIX E10 Battery Mo...
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from $2,499.00

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Jackery Battery Pack 2000 Plus

1 review

from $799.00

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Jackery Battery Pack 2000 Plus Overview The Jackery Battery Pack 2000 Plus is a powerful addition to your Jackery Explorer 2000 Plus Portable Power...
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from $799.00

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ZERO BREEZE Mark 3 Battery

No reviews

Original Price $899.99

Current Price $854.99

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The ZERO BREEZE Mark 3 Battery Helps Deliver The Cooling Comfort Of Home Anywhere You Are Upgrade your outdoor adventures and mobile living wit...
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Original Price $899.99

Current Price $854.99

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EcoFlow DELTA 3 Max Plus Smart Extra Battery

1 review

Original Price $1,399.00

Current Price $859.00

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Just Arrived

Perfect for Off-Grid Use

The EcoFlow DELTA 3 Max Plus Smart Extra Battery Adds 2048Wh of LFP Capacity to Your Power Station The EcoFlow DELTA 3 Max Plus Smart Extra Batt...
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Original Price $1,399.00

Current Price $859.00

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BLUETTI AC500 Home Battery Backup Generator | 5000W | 3000W Solar Input

No reviews

from $1,399.00

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Customer Favorite

Perfect for Off-Grid Use

The BLUETTI AC500 Is a 5,000W Modular Home Battery Backup That Scales With B300K Batteries The BLUETTI AC500 is a 5,000W pure sine wave inverte...
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from $1,399.00

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Pecron FP5000-48V Expansion Battery | 5120Wh | For F5000LFP

No reviews

$1,299.00

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The Pecron FP5000-48V Expansion Battery Delivers 5,120Wh of Scalable LiFePO4 Storage for True Energy Independence You already made a smart call inv...
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$1,299.00

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BLUETTI B500 Expansion Battery

2 reviews

Original Price $3,999.00

Current Price $1,999.00

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The BLUETTI B500 Adds 4,960Wh of LiFePO4 Storage to Your EP800 or EP900 Home Energy System The BLUETTI B500 Expansion Battery is the battery pack f...
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Original Price $3,999.00

Current Price $1,999.00

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BLUETTI B500K Expansion Battery | Compatible With Apex 300/AC300/AC200L | 5120Wh

No reviews

from $1,599.00

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Customer Favorite

Perfect for RV Life

The BLUETTI B500K Adds 5,120Wh of LiFePO4 Storage to the Apex 300, AC300 and AC200L The BLUETTI B500K Expansion Battery stores 5,120Wh in a sin...
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from $1,599.00

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Mango Power E Expansion Battery

No reviews

Original Price $2,999.00

Current Price $1,099.00

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Mango Power E Expansion Battery Overview The Mango Power E Expansion Battery is the perfect way to extend the capacity of your Mango Power E Portab...
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Original Price $2,999.00

Current Price $1,099.00

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Jackery Battery Pack 2000 Plus v2

No reviews

from $899.00

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The Jackery Battery Pack 2000 Plus v2 Adds Instant Extra Capacity So Your Power Never Runs Short When the sun goes down, the grid goes out, or your...
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from $899.00

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OUKITEL B2000 Expansion Battery | 2048Wh

No reviews

$579.99

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Just Arrived

Perfect for Off-Grid Use

The OUKITEL B2000 Expansion Battery Adds 2048Wh To Your OUKITEL Power Station In an era where staying connected and powered up is more critical tha...
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$579.99

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EcoFlow WAVE 3 Battery

No reviews

$899.00

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The EcoFlow WAVE 3 Battery Locks Under Your WAVE 3 and Adds 1024Wh for 2-8 Hours of Cordless Comfort The EcoFlow WAVE 3 Battery is EcoFlow's WAV...
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$899.00

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ZERO BREEZE Mark 2 Battery

No reviews

Original Price $599.00

Current Price $569.05

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ZERO BREEZE Mark 2 Battery Overview The ZERO BREEZE Mark 2 Extra Battery is the perfect way to extend the portability of your ZERO BREEZE Mark 2 Po...
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Original Price $599.00

Current Price $569.05

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Jackery FridgeGuard Battery Pack | 1024Wh Expansion Battery

No reviews

$629.00

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Just Arrived

Ideal for Home Backup

The Jackery FridgeGuard Battery Pack Doubles Your Refrigerator Backup To 2,048Wh The Jackery FridgeGuard Battery Pack adds a second 1,024Wh LiFe...
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$629.00

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91%

(769)

(36)

(13)

(3)

(21)

Exactly what I ordered

Exactly what I ordered. Great quality and the updates that are given as to when it was shipped and when it should arrive is amazing.

Generator works

Generator works. Have yet to try solar panels. Will have to wait for a sunny day! Just wish I was more tech-savvy. Feel a little overwhelmed… but I am satisfied w purchase

It charges the battery on a cloudy day

This battery charges lightning fast has a light and multiple charging ports and two sockets. It has 2 way power, from the solar panel and the wall outlet. Definitely purchasing from this seller again

Trusted Since 2025 – Highly Recommended!

The generator cord looks longer in the pictures than in real life. It is 18” long from tip to tip. I received the cord on time and in excellent condition. I have not used the cable at this time as it is for power outages only. I’ve recommended Outboundpower.com to everyone for a vender of solar and power station equipment. They have been a favorite of mine since 2025.

Hi Homer, thanks so much for the kind recommendation and for trusting us for so long! We’re glad your adapter arrived on time and in excellent condition. Thank you for your note about the length and hope it’s ready when you need it. We appreciate you!

Was wrong about last review

Email discomunication and other led to my last review,when spending a lot on solar equipment I was lead to believe what my sales person had told me,,they said they would send a email where I could get a discount for my purchase,I waited patiently and it never came,so I thought I could trust them and made the purchase anyway hoping for the adjustment,I finally got it,but they have reach out to me,and because they do so much business they get tided up with other things,I believe that are the best people to buy solar from,things just got of hand,please know that they have done an excellent job for me and others

Hi Todd, thank you for updating your review and for your kind words. We’re sorry for the email miscommunication, but glad we were able to follow up and get it sorted out. We truly appreciate your patience and trust, and we’re grateful you chose us for your equipment!

Excellent work

Jam sales agent did a first class job, products and prices were better than I could get anywhere. They did a great job. I miscalculated some things, but found out that they were all in my favor. Thanks to the team at Outbound Power.

Hi Todd, thanks so much for the kind words! We’re delighted that everything worked out in your favor. We truly appreciate your support. You are the best!

First class treatment by Outbound Power

I give this a five star rating because of the service that jam help me with,, generators, batteries, solar panels, wires, breakers, shut off everything, and I am not an expert at putting this all together, but she straightened me right out. Oh, I had to do is get my electrician to hook up to my breaker box which wasn’t a big deal rest was very easy,, and jam also helped me with the pricing and it was just the first class Five Star Job by Outbound Power I love him and if I get anything else, it will definitely be from jam and Outbound power company.

Hi Todd, thank you for the wonderful five-star review! We’re so glad Jam made choosing and putting together your backup system easy and helped you find the right options and pricing. We’ll be sure to share your kind words with her. Thanks for choosing Outbound Power — we’re here whenever you need us!

My second purchase with Outbound Power

My second purchase with Outbound Power. I wanted to expand the capacity of my Delta Pro 3, and they gave me a really good price on the Delta Pro 3 extra battery. It was shipped quickly and for free! Got it connected easily to the Delta Pro 3 with the included cable and it began charging immediately. Very pleased with the battery and with Outbound Power!

Hi there, thanks for choosing Outbound Power again! We’re glad you had a such a great experience. We truly appreciate you!

Exactly what I was looking for

Exactly what I was looking for in terms of ease of use, runtime, features, etc. Outbound Power were very easy to work with

Hi there, thanks for the great review! We’re delighted the S2000 has the ease of use, runtime, and features you were looking for, and that you found our team easy to work with. Enjoy your power station and let us know if we can ever be of service again!

Expansion Batteries

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