Description
xVictron Centaur Charger 12/40(3) 120-240V
The Victron Centaur 12/40 is a three-output, mains-powered battery charger designed for 12V battery banks up to 40A total output. It is suited to marine, vehicle, and off-grid installations where multiple battery banks need simultaneous, controlled charging from a single unit. The wide 120-240V AC input range makes it compatible with both UK and international mains supplies.
Key Features
- 40A total output across three independent outputs, allowing simultaneous charging of a main battery bank and two auxiliary banks.
- Wide AC input voltage range of 120-240V, suitable for UK, European and North American mains supplies.
- Four-stage adaptive charging algorithm (bulk, absorption, float, storage) adjusts automatically to battery condition.
- Compatible with a wide range of battery chemistries including flooded, gel, and AGM lead-acid batteries.
- Temperature-compensated charging via optional sensor input, protecting batteries in environments with significant temperature variation.
- Microprocessor-controlled with built-in protection against overcharge, short circuit, reverse polarity and high temperature.
- Compact, wall-mountable enclosure with a weight of 6.4kg, suitable for permanent installation in confined spaces.
Product Overview
The Centaur 12/40(3) uses a four-stage adaptive charging process. During bulk charge, the full 40A output is applied to bring the battery up to voltage quickly. The absorption stage then holds voltage constant while current tapers, ensuring a full charge without gassing. Float and storage modes maintain the battery at safe resting voltages for extended periods, making the charger suitable for standby and seasonal applications.
The three-output design is a practical feature for installations with separate battery banks, such as a starter battery, a domestic service bank, and a bow thruster or generator start battery on a vessel. Each output is independently managed, so the charger prioritises the bank with the greatest demand without overcharging the others. This removes the need for battery-to-battery chargers or split charge relays in many installations.
The 120-240V AC input is handled automatically, with no manual switching required. This makes the unit straightforward to use in mixed-voltage environments or when equipment moves between regions. All Centaur chargers are built to Victron's standard for continuous-duty operation, meaning they are rated for permanent connection rather than occasional top-up use.
Specifications
- SKU: CCH012040000
- Output voltage: 12V
- Output current: 40A (three outputs)
- AC input voltage: 120-240V
- Weight: 6.4kg
- GTIN: 8719076021490
Applications
- Marine vessels with separate starter, domestic and auxiliary battery banks.
- Motorhomes and coaches requiring simultaneous charging of chassis and habitation batteries.
- Off-grid cabins and outbuildings with mains or generator power available for periodic battery charging.
- Commercial vehicles with multiple 12V battery systems.
- Standby power installations where batteries must be maintained at full charge over extended periods.
What Is Included
- Victron Centaur Charger 12/40(3) 120-240V unit
Installation Notes
Installation should be carried out by a qualified electrician or marine electrical engineer. The unit must be connected to a correctly fused and earthed AC supply in accordance with local wiring regulations. In the UK, mains connections must comply with BS 7671. Battery cabling should be sized appropriately for the 40A output current and kept as short as practicable to minimise voltage drop. If the optional temperature sensor is used, it should be attached directly to the battery casing of the main bank. Do not install in locations exposed to direct water ingress or where ventilation is restricted.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.