EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
    EB3840 Expansion Battery 300Ah - iTechworld
    EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
    EB3840 Expansion Battery 300Ah - iTechworld
    EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld
EB3840 Expansion Battery 300Ah - iTechworld

4.8

452 reviews

EB3840
Expansion Battery
300Ah

Regular price
$2,999
Sale price
$2,999
Regular price
$3,999
Tax included. Shipping calculated at checkout.

-10 to 40°C

Working Temperature

4000

cycles to 80%

3600W

Pure Sine Wave
AC 240V output

perfect for
off-grid & home backup

300Ah

(3840Wh) Lithium
LiFePO4 battery

charge from

0-80% in 1 hours

via standard 240V wall plug

Introducing the EB3840 Expansion Battery. Designed for home backup, up to two of the EB3840 (300Ah each) connected with the PS3600 PRO, you can seamlessly increase the power storage capacity of your power station up to 11,520Wh (900Ah), which ensures complete off-grid living is attainable.

As standard in the iTechworld Power Station range, the EB3840 Expansion Battery features the safest lithium technologies available including over-charge, over-discharge, over-current, over-load, short-circuit, and over-temperature protection.

 

PACKAGE CONTENTS

  • 1 x EB3840 Expansion Battery
  • 1 x Car Charger
  • 1 x Parallel Cable
  • 1 x 50A Anderson to XT60 Adapter
  • 1 x Cable Storage Bag
  • 1 x User Guide

Support

The EB3840 expansion battery includes an exclusive 2 year warranty from date of purchase. Keep out of direct sunlight and away from moisture and water.

quick stats

  • Designed ForHome backup, and off-grid trips
  • Charging Time0-80% in 1 hour via standard 240V wall plug
  • Expansion BatteryFor PS3600 PRO Power Station
  • Charging Options240V AC mains, car socket, solar, generator
  • Additional FeaturesInbuilt wheels and trolley

product dimensions

  • A: Length (mm): 550
  • B: Depth (mm): 464
  • C: Width (mm): 321

EB3840 User Guide

EB3840 User Guide

download

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Latest Articles

4.8
Rated 4.8 out of 5 stars
Based on 452 reviews
Total 5 star reviews: 390 Total 4 star reviews: 53 Total 3 star reviews: 9 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
452 reviews
  • Rated 5 out of 5 stars
    3 weeks ago
    Good product, plenty of power capacity.

    I do a lot of motorcycle camping and needed a power supply that would power my CPAP machine and charge my phone, helmet, etc when I'm camping. The PS300 does this well.

    If I turn my CPAP tube heater and humidifier off, the PS300 runs my CPAP easily for 8hrs with 40% battery remaining. That leaves plenty of reserve to charge my phone a couple of times as well as charge my helmet intercom. If I leave the humidifier and tube heater on, the PS300 runs the CPAP for about 4-5 hours. Better to leave them switched off.

    Charging the PS300 is a breeze. At home on 240v it takes around 5-6 hours. I have yet to test it charging through the bike's 12v system.

    Thus far I am very happy with the PS300 and I would highly recommend it to other buyers.

    MT
    Mark T.
    Verified Buyer
    Reviewing
    PS300 | Portable Lithium Power Station | 300W 21.5Ah
  • Rated 5 out of 5 stars
    1 month ago
    Versatile & compact

    Can’t wait to hit the open road after pumping up 4 tyres with this great little unit using only 2 percentage battery points. Maintains a full 15 litre car fridge as expected. This is the second Power Station in our family from Itechworld.

    PS
    Paul S.
    Verified Buyer
    Reviewing
    PS300 | Portable Lithium Power Station | 300W 21.5Ah
  • Rated 4 out of 5 stars
    1 month ago
    PS1800 PRO

    4 stars for portability, effective charging off grid. One star loss for weird placement of 240 v plugs. When our Starlink mini plugged can’t use the other plug. Bad design fault

    JH
    Judy H.
    Verified Buyer
    Reviewing
    PS1800 PRO | Portable Lithium Power Station | 120Ah
  • Rated 5 out of 5 stars
    1 month ago
    Brute Power

    I purchased the PS3600 Pro mainly for its UPS functionality. It certainly looks the part, well engineered and laid out, making it easy to use right out of the box. It’s heavy, but that makes if feel high quality and reliable. Watching microwave ovens, kettles and induction plates effortlessly run is very pleasing.

    I have also purchased one EB3840 expansion battery to increase capacity. Together these units are truely brutes to look at but easy to use. Switching on the PS 3600 also turns on the EB3848 battery, nice touch. Everyone who sees them is impressed. Nice one iTechWorld!

    RV
    Ron V.
    Verified Buyer
    Reviewing
    PS3600 PRO | Portable Lithium Power Station | 3600W 300Ah
  • Rated 5 out of 5 stars
    1 month ago
    Cover for PS2000 Power Station.

    I’m happy with the cover for my PS2000 Power Station.

    Keeps the dust out off the unit and reduces any hard edges from the environment it’s put in that may scratch it. The screen can be hard to see when outside in the sun but easily seen in shade.

    DH
    David H.
    Verified Buyer
    Reviewing
    iTechworld | Power Station Cover | PS2000
  • Rated 4 out of 5 stars
    1 month ago
    PS 2000

    I have

    put the PS 2000 through tests and it does what ITech says it does..

    I like being able to charge the PS 2000 via the solar input while still being able to use all the outputs.

    Charging up via the 240v mains power is very quick.

    I can charge the PS2000 via my 12v outlet in my car when travelling so when I get to my destination it is fully charged ready for use.

    It does me for what I use it for, a very good product.

    DH
    David H.
    Verified Buyer
    Reviewing
    PS2000 | Portable Lithium Power Station | 2000W 160Ah
  • Rated 5 out of 5 stars
    2 months ago
    PS300 to power a tankless gas hot water system.

    A really good little power station. Purchased to power a Rinnai B26 tankless gas hot water heater in a power failure and it does that very well. With the hot water on it draws only 17W, it could easily supply enough power to run our hot water demand for several days on a single charge. For added capacity it can be charged from a solar panel. As a little test it used only 3% of its stored power to recharge an iPad. The capacity is best suited to small electronics but is also easily capable of supplying power to essential items like an instant gas hot water system or garage opener during a power failure.

    S
    SamC
    Verified Buyer
    Reviewing
    PS300 | Portable Lithium Power Station | 300W 21.5Ah
  • Rated 5 out of 5 stars
    2 months ago
    Great for a weekend away

    Runs my wife’s coffee machine

    Happy wife happy life

    And also cooks a great feed

    LE
    Les E.
    Verified Buyer
    Reviewing
    PS1800 PRO | Portable Lithium Power Station | 120Ah

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