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2kWh 400W 12V Solar Panel System w/Solar Panel, Battery, Inverter and Charge Controller

2kWh 400W 12V Solar Panel System w/Solar Panel, Battery, Inverter and Charge Controller

Sold by Renogy UK

From £959.99across the range: £959.99 – £1,279.99

Renogy UK's price when we last checked, on 2 September 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.

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Multiple variants; verify the linked variant before quoting a price

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Overview

2kWh 400W 12V Solar Panel System w/Solar Panel, Battery, Inverter and Charge Controller

A complete 12V system: 400W of Topcon panel, a 200Ah lithium bank, a 2,000W inverter and a 40A MPPT controller. Everything sized against everything else, which is the main argument for buying a system rather than assembling one.

  • 400W of solar, 200W Topcon panels at 20.7% module efficiency
  • 200Ah Core Mini LiFePO4 battery, 5,000 cycles
  • 2,000W pure sine wave inverter
  • 40A Rover MPPT charge controller
  • Panels 1262 × 764 × 30mm, 10.6kg each
  • Also configurable with a 100Ah battery or an inverter charger

Why the parts match

400W of panel into a 40A controller at 12V is comfortably inside the controller's ceiling, so nothing is clipped on a bright day. 200Ah of lithium will absorb a full day's harvest without the charge current limit getting in the way. And a 2,000W inverter is the right size for a bank that can deliver it. Those three relationships are what people get wrong when buying piecemeal.

What it does not include

A kit is a starting point, not a wiring loom. You will still need battery cable in the right gauge, fusing at every source, a bus bar arrangement, mounting hardware for the panels and a cable entry gland. Budget for those separately rather than being surprised.

Check the variant

Renogy configure this page several ways — 100Ah or 200Ah battery, plain inverter or inverter charger. The figures above are the 200Ah and 2,000W inverter build. Confirm which configuration you are ordering on their page before you buy.

Specification

Renogy's published figures

Taken from Renogy's own specification for this product, on the date shown by the price. Anything wired into 230V mains should be signed off by a qualified electrician.

System 400W solar, 200Ah lithium, 2,000W inverter, 40A MPPT
Panel max power (STC) 200W each
Panel open circuit voltage 37.44V
Panel optimum operating voltage 31.03V
Panel short circuit current 6.85A
Module efficiency 20.7%
Panel dimensions 1262 × 764 × 30mm, 10.6kg
Battery 100Ah at 12.8V per pack, LiFePO4, 5,000 cycles
Battery max charge and discharge 100A, 300A peak for 5s
Battery protection rating IP65
Battery terminal torque 10 to 12 N·m, M8

Build notes for this part

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