Battery energy storage · MAX range

Power where you need it

Modular battery storage from 328kWh to 1.5MWh, on-grid or off-grid.

Deployed in minutes rather than months. Delivered, commissioned and maintained by PLUG, with the driver app, RFID and back office included.

PLUG MAX300 battery unit with two integrated DC charging outlets
MAX300 shown with optional integrated DC charging

The problem we solve

Solve grid upgrades with power on site

New connections take years and existing supplies are expensive to upgrade. Temporary power from diesel generators is costly and increasingly restricted. PLUG delivers the power you need now, on-grid or off-grid, deployed in minutes not months.

EV charging

Depots and public hubs, vehicles, plant and fleets.

Scotland · MAX300 stationary

£300k

grid upgrade deferred. A 32A supply now runs satellite DC fast chargers.

Construction

Infrastructure and sites, cranes, equipment and plant.

Ireland · MAX300 mobile

£1,500

a week saved in fuel, a 70% cut when hybrid connected to a genset.

Commercial

Factories, farms, distribution centres, solar and grid upgrades.

England · MAX300 commercial

£100k+

saved in the first year by keeping the site under its maximum import capacity.

Events & broadcast

Sports, media and television production.

Wales · MAX300 off-grid

9 hours

of continuous broadcasting on renewable, off-grid battery power.

The range

Four units, one platform

Every MAX shares the same battery architecture, software and safety systems. Choose the capacity your site needs today, then run more units in parallel as demand grows.

MAX300 on a twin-axle trailer with charging outlets

MAX300

328kWh · 280kW

Our most deployable unit. Sits in one parking space, or tows under 3.5t on a standard licence.

Key specification

Usable capacity
300kWh
Continuous power
88 / 140 / 280kW
Max DC charging
400kW
Weight
2.8–3.0t
Transport
Static or trailer
MAX500 with integrated DC fast charging

MAX500

492kWh · 420kW

Half a megawatt-hour in a footprint barely larger than the MAX300, with optional integrated DC fast charging up to 480kW.

Key specification

Usable capacity
450kWh
Continuous power
210 / 420kW
Max DC charging
480kW
Weight
7.8–8.0t
Transport
Forklift or top lift
MAX1000 in a hooklift container

MAX1000

1MWh · 840kW

A megawatt-hour on a standard hooklift container. Roll it off in under two minutes and power the site the same day.

Key specification

Usable capacity
900kWh
Continuous power
420 / 840kW
Max DC charging
640kW
Weight
11.7–12.0t
Transport
Hooklift container
MAX1500 in a hooklift container

MAX1500

1.5MWh · 1.26MW

The highest power unit, for heavy civils, large public charging hubs and data centre resilience.

Key specification

Usable capacity
1,350kWh
Continuous power
630 / 1,260kW
Max DC charging
1.28MW
Weight
15.0–15.5t
Transport
Hooklift container

Full comparison, charge and discharge options and connection requirements are in the brochure. Get the brochure

Second life

Automotive safety and performance

Every MAX is built from electric vehicle battery packs that keep their original battery management and cooling systems. Assembled in Great Britain, supported from Cardiff.

average battery pack state of health on delivery
95%
lower embedded CO₂ than new-cell storage
60%
to recharge a MAX300 from a DC fast charger
1 hr
system efficiency from 25% to 100% load
94%+

Turnkey from PLUG

Site survey, delivery, commissioning and full O&M with UK field engineers. One contract, one team.

Advanced safety

Pyro fuses isolate the DC circuit, with multi-parameter sensing and 24/7 monitoring.

Certified and warranted

UKCA / CE, IEC 61000 and 62619. Three-year warranty, extendable by two years.

MAX range brochure

Get the brochure

Our 16-page brochure has everything you need to size a MAX for your site and make the case internally.

Cover of the PLUG MAX range brochure
  • Full specifications for all four units, side by side
  • How MAX charges and discharges, on-grid and off-grid
  • Connection requirements and outlet options
  • Real deployments with the savings they made

Download it now

Tell us a little about you and the brochure downloads straight away.

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