• EcoFlow DELTA Max 2016Wh Extra Battery
  • EcoFlow DELTA Max 2016Wh Extra Battery

EcoFlow DELTA Max 2016Wh Smart Extra Battery (for DELTA Max 2000 & DELTA Max 1600)

Product Code: ECO-EXTRA-DM

Ex VAT £ 1,124.17

Inc VAT £ 1,349.00

EcoFlow DELTA Max 2016Wh Smart Extra Battery (for DELTA Max 2000 & DELTA Max 1600)


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EcoFlow DELTA Max 2016Wh Extra Battery

This EcoFlow DELTA Max smart extra battery provides an extra 2016 Wh for charging your DELTA Max 2000 or DELTA Max 1600 power station. Together, this will give you plenty of power for your essential appliances. The battery has a long one year shelf life after a full charge, making it ideal for emergency backup.

What's in the Box?

  • Smart extra battery for DELTA Max
  • DELTA Max connection cable
  • User manual
  • 2 year warranty

Best Features of the EcoFlow DELTA Max Extra Battery

  • Provides an extra 2016 Wh for your DELTA Max - This EcoFlow extra battery allows you to double the capacity of your DELTA Max 2000 to 4032 Wh or increase the capacity of your DELTA Max 1600 to 3628 Wh, which will give you plenty of power for your essential appliances
  • Long one year shelf life after a full charge - Ideal for emergency backup
  • Rapid charging - EcoFlow’s X-Stream charging technology is the fastest in the industry. To charge the battery, simply connect it to your DELTA Max and charge the power station via one of these methods: mains wall socket, 12V car adapter, solar panel (buy separately here) or an EcoFlow Smart Generator (buy separately). You can also combine these charging methods to charge the DELTA Max and the battery even faster. Once connected, the DELTA Max and the battery will charge and discharge in unison, keeping the battery percent level across both units.
    Note: You don't need to connect the battery to the DELTA Max if you're charging it with an EcoFlow Smart Generator. You can connect the battery directly to the generator for faster charging.
  • Equipped with management systems for increased protection - Battery management system, overload protection, overcurrent protection, over voltage protection, low voltage protection, short circuit protection, over temperature protection and low temperature protection
  • Bright LCD screen on the front of the unit provides all of the information that you need, like the output, input, remaining charge and remaining runtime
  • Smart control - You can monitor and control this EcoFlow DELTA Max extra battery remotely via the EcoFlow app on your smartphone or tablet

Technical Spec.

  • Compatible power stations: DELTA Max 2000 and DELTA Max 1600
  • Capacity: 2016 Wh
  • Cell chemistry: NCM
  • Cycle life (charges): 800 cycles to 80%+ capacity
  • Port input: 50.4 V, 1800 W max.
    Port output: 43-58.4 V, 3200 W max.
  • Shelf life after a full charge: 1 year
  • Weight: 18 kg
  • Dimensions: 46.4 x 23.5 x 28.3 cm
  • Charge temperature: 0 to 45 °C (± 3 °C)
    Discharge temperature: -20 to 45 °C (± 3 °C)
  • Testing and certification: UL CE FCC ROHS Telec


Delivery Info


FREE Delivery

Free UK Delivery
Over £99*

Next Day Delivery

Next Working Day Delivery
Order by 3pm*

1 Hour Time Slot

1 Hour Time Slot
via text alert

Delivered 6 Days a Week

Delivery 6 Days a Week
Monday - Saturday



FREE Delivery

to UK mainland when you spend £99 (up to 30kg).

You can test your delivery postcode at the first step of the checkout.

A surcharge applies for orders that include a 'bulky item' or where the total weight is over 30kg. A 'bulky item' will highlight itself on the product description page. A surcharge also applies for orders that are being delivered to a UK offshore postcode. This surcharge is discounted when you spend over £99.


Order by 3pm for Next Working Day Delivery

Our working days are Monday - Friday.

Only for in-stock items (on the product description page it will display either 'next day' or '3-4 days dispatch'). Order by 2pm for items that trigger a 'freight rate' surcharge at the checkout (e.g. heavy generators and table saws) as well as anything that includes gas canisters (e.g. Paslode nails). Please allow an extra day for Scottish Highlands postcodes. Freight items can not be delivered offshore.


Small Parcel Cheaper Delivery - £3.79

Untracked 7-12 working day delivery (small parcels).

We provide a low-cost delivery for certain small parcels of up to 2kg for orders under £99. This service is provided by Royal Mail (currently on a 7-12 working day service if in stock). It's applicable on some accessories from Bosch, Festool, DeWalt, Trend, Fein and Makita. Some compact 18V body only tools will also qualify. This service won't accept any combustible items such as canisters, cartridges or lithium batteries.


NEW & Improved Secure Deliveries

PIN code verification at your doorstep

We've improved the security of our deliveries to you with DPD's PIN code verification system. We will be using this service on most orders to ensure your parcel gets to you securely.

You will receive a PIN code via text and/or email which you must recite to the delivery driver on arrival. If someone is receiving the parcel on your behalf, remember to pass on the code to them. The driver can also resend the PIN code to the original contact on arrival if required. This service requires a mobile phone number with your order so please ensure you provide one to take advantage.


- Our deliveries are very easy to track, plus you'll get a handy 1 hour delivery window so you know when to expect your items. You'll receive a tracking number with your 'order dispatched' email.

- Your VAT invoice is always in the box with your goods.

- Your goods are always securely packaged when leaving our warehouse. We strive to ensure your goods reach you in prime condition.

Our main courier is DPD. We use DPD for the vast majority of our deliveries. APC and TNT handle other specific types of deliveries for us. In poor weather conditions our couriers may experience delays that are out of our control, however we will help you in every way possible to track delivery progress.

- Delivery to construction/job sites is possible, but done so at your own risk. Our service can deliver to an address, but we can't guarantee delivery to a specific person or location at the address. For the best outcome, please provide detailed courier instructions and a contact number that we can pass on to the courier.

- Delivery to 'safe place' is not available for most orders, someone must be present to receive your delivery. We do this to ensure our couriers deliver to the right person at the right address, to ensure your goods are not lost or stolen. Particularly as most orders are of high value.


UK Standard Delivery (Goods below 30kg)

UK Mainland
UK standard - next day - orders over £99 FREE
UK standard - next day - orders below £99 £6.99
UK standard - next day before noon - orders over £99 £8.99
UK standard - next day before noon - orders below £99 £15.99
Scottish Highlands
Scottish Highlands - 1-2 days - orders over £99 FREE
Scottish Highlands - 1-2 days - orders below £99 £6.99
UK Mainland - Saturday Premium
UK Saturday premium - orders over £99 £24.00
UK Saturday premium - orders below £99 £30.99
UK Offshore

Northern Ireland, Scottish Islands & other UK Islands

UK offshore - 1-2 working days - orders over £99 £7.00
UK offshore - 1-2 working days - orders below £99 £13.99
Channel Islands

Channel Islands

Channel Islands - 2 working days - orders over £99 £15.00
Channel Islands - 2 working days - orders below £99 £21.99
Order includes Paslode nails/gas:
Channel Islands - 3-5 working days - orders over £99 Unavailable
Channel Islands - 3-5 working days - orders below £99 Unavailable


UK Freight Delivery (Goods over 30kg)

UK Mainland
UK freight - 1-2 working days £25.00
Scottish Highlands & UK Offshore
Highlands freight - 2/3 days £100.00 Offshore freight Unavailable

It's unsafe to lift anything above 30kg, so a pallet is required to transport these goods.


Want Faster Delivery?

UK - Next Working Day Before Noon (*1pm for some remote postcodes) for in-stock items and only on weekdays. Orders placed after 3pm on Thursday are received on Monday morning. Orders placed after 3pm on Friday are received on Tuesday morning.

UK - Saturday Premium for in-stock items ordered between 3pm Thursday - 3pm Friday to be received on Saturday. No Sunday deliveries.


Click & Collect - Glasgow Store

  • Reserve your items by ordering on our website via our click and collect option (item must be in stock to collect)
  • Please wait until we've contacted you with a time slot so we can ensure social distancing (collection usually ready 1 hour after order placed)


Want to collect in Glasgow? Reserve online and pick up at your convenience:

1. Add any in-stock items to your basket on our website

2. Select 'Collection - Glasgow Store' at the checkout

3. Enter your name, number, email & invoice address

4. Collect and pay in store (within 2 business days)


Delivery to Europe - Ireland Only

Currently unavailable.

Delivery is available to Ireland. We're currently unable to ship items above 30kg. You must place your order with VAT included. We will then refund the VAT upon confirmation of your VAT number. Email your VAT number to sales@kelvinpowertools.com immediately after placing your order.

Irish Republic
2-day delivery £12.00


All of our delivery charges are as per the costs from the courier. We always strive to improve on these.

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