LG Chem RESU16H Prime 16kWh Large Battery Storage System

£8,999.99 ex VAT£10,799.99 inc VAT

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Product features

  • Large home battery storage
  • For modern homes & solar installs
  • Remote battery monitoring
  • On-the-spot maintenance
  • Whole home backup power solution
  • Quicker & easier handling
  • Floor-standing installation
  • Future-ready parallel support
Product code: RESU16H-PRIME
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Description

One of the largest lithium-ion home battery storage systems in the world. The LG Chem RESU16H Prime is an incredibly powerful, high capacity, whole home backup solution, designed to deliver reliable, high-power performance for modern homes and solar installations. Built with advanced lithium-ion cells, the RESU16H Prime provides 16.0 kWh usable energy under standard conditions, giving you substantial capacity to run daily household loads overnight or during grid disruptions.

As one of the largest residential lithium-ion battery solutions on the market, the RESU16H Prime gives homeowners the freedom to store large amounts of energy - perfect for self-consumption of solar generation, load shifting, peak demand savings, or full-home power backup during grid outages.

Because it uses high-voltage architecture, the RESU16H Prime achieves efficient charging/discharging and smooth communication with modern hybrid solar inverters - making it well-suited for both new installations and retrofit upgrades. If you're looking for a future-proof, scalable home battery solution that balances everyday use, energy independence, and resilience, the RESU16H Prime is among the top-performing residential batteries you can buy today.

  • Large Capacity: Whole-home backup capacity: 16kWh (expandable to 32kWh)
  • Quicker & Easier Handling: Modular design for transportation, handling & installation
  • Remote Battery Monitoring: Real time battery status monitoring & early diagnosis with RESU App/Web 
  • On-The-Spot Maintenance: Detachable control unit can be replaced for on-site maintenance
  • Designed for floor-standing installation
  • Compatible with SolarEdge systems
  • CAN & RS485 communication
  • 10-year product warranty
  • Guaranteed 70% energy retention after 10 years

Specifications

  • Power: 7kW (Rated) / 11kW (Peak)
  • Battery Life: 70% after 10 years (Global)
  • Scalable: Up to 2 units (32kWh)
  • Total Energy: 16 kWh
  • Useable Energy: 16 kWh
  • Weight: 159kg
    • Battery control unit: 24kg
    • Battery modules: 65kg x2EA
    • Connect plate: 5kg
  • Dimensions: W: 504mm x H: 1,086mm x D: 295mm
  • Communication: CAN & RS485
  • Enclosure Protection Rating: IP55

Please note, the battery is physically capable of being paired with a second unit, but LG is still finalising the software (firmware) that enables this feature. Until that software is officially approved and released in your region, parallel connection is not yet activated.

Code: RESU16H-PRIME

DELIVERY INFORMATION

Fast, reliable UK delivery

  • FREE UK delivery (2–3 working days) on orders over £99 exVAT (order before 4pm)*.
  • Orders under £99 exVAT are charged £6 inc VAT (£5 exVAT).
  • Need it quickly? Choose from our Next Working Day & Saturday delivery options below (order before 2pm).

Delivery options & rates

Delivery OptionDelivery TimeCost
Standard Delivery2-3 working days£6.00 (£5.00 exVAT)
FREE Standard Delivery (orders over £99 exVAT)*2-3 working daysFREE
Next Working Day Delivery (order before 2pm)Next working day£9.99 (£8.33 exVAT)*
Next Working Day by 12pm  (order before 2pm)Next working day£20.00 (£16.67 exVAT)
Next Working Day by 10:30am  (order before 2pm)Next working day£21.60 (£18.00 exVAT)
Saturday Delivery  (order before 2pm Friday)    Next working day£20.00 (£16.67 exVAT)
Northern Ireland, Highland  & Islands Delivery  3-5 working days£9.99 (£8.33 exVAT)

Important: Orders placed after 2pm on Friday (or over the weekend) are processed on Monday for next working day delivery. Next Day & Saturday Delivery options NOT available on all products.

*FREE Standard & Next day delivery available on select products and will be clearly shown on the product page.


What to expect

  • We dispatch Monday - Friday (excluding public holidays).
  • Once dispatched, you’ll receive tracking information (where available).
  • If delivery is delayed for any reason, we’ll contact you as soon as possible with an updated estimate.

Please note: we cannot be held responsible for missed deliveries. Customers are advised to check their spam or junk folder to ensure tracking information and estimated delivery details are received.


Specialist product delivery

Some products require specialist handling:

  • For Portable power please allow up to 4 working days for delivery.
  • Solar panels are shipped via our £100 pallet delivery service.
  • In some cases a third-party supplier may fulfil your order directly.

Delivery areas & restrictions

  • Northern Ireland, Scottish Highlands & Channel Islands: please contact us for shipping rates.
  • Portable power to Northern Ireland: we can’t currently ship these items due to insurance issues with the courier.
  • International delivery: unfortunately we do not currently offer international shipping.

Questions, problems, or returns?

RETURN POLICY

Last updated May 23, 2024

Thank you for your purchase, we hope you are happy with it.

However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange; please see below for more information on our returns policy.

RETURNS

If you find you have received the wrong or damaged item(s), you need to contact us within 7 days of receipt of goods. Any time after this you are responsible for returning the goods at your own cost following the standard returns process.

All returns must be postmarked and in writing within fourteen (14) days of the purchase date. All returned items must be in a new, unopened and unused condition, with all original tags and labels attached.


RETURN PROCESS

To return an item, please click the ‘Download Returns Form’ below and complete all data fields. You can then email this to our team once completed.
Place your item(s) securely in its original packaging along with the returns form.
Please note that the RMA# on the returns address is your original order number; please ensure to reference this on the returns address, as per below.
You are now ready to mail your return to the following address:

Attn: Returns
RMA #/Order No -
Eco WizardUnderfloor Wizard Ltd t/a ECO Wizard
Beechfield House
Winterton Way
Macclesfield
Cheshire
SK11 0LP
United Kingdom

We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.

Please note, you will be responsible for all return shipping charges, unless in the instance of damaged/faulty goods received in which case we can issue you with a returns label to cover the cost of postage.

Download Returns Form

REFUNDS

After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.

Faults on installed products: 

If a product that has been installed develops a fault, please contact us, do not uninstall the product yourself. We will arrange for an engineer or technical support from the brand to assist with diagnosing the fault. Once the fault has been confirmed we can then arrange for the necessary next steps to occur.


EXCEPTIONS

The following items cannot be returned or exchanged:

  • opened box, damaged, missing or incomplete items cannot be returned.
  • items that have been installed.


QUESTIONS
If you have any questions concerning our return policy, please contact us at: returns@ecowizard.co.uk

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