Description
xVictron Battery Balancer
The Victron Battery Balancer equalises the charge across two 12V batteries connected in series to form a 24V bank. It is designed for installers building 24V systems from 12V batteries, where small differences in cell condition or charge acceptance cause imbalance over time. Left uncorrected, this imbalance shortens battery life and reduces usable capacity. The Battery Balancer corrects this automatically without any need for programming or user adjustment.
Key Features
- Balances two 12V batteries wired in series in a 24V battery bank, correcting voltage differences between them.
- Activates automatically once the difference between the two batteries exceeds 0.1V, drawing up to 0.7A from the higher battery.
- Requires no configuration, software or user intervention once wired in.
- LED indicator shows balancing activity at a glance, making it easy to confirm correct operation during installation checks.
- Multiple Battery Balancers can be connected in series for 48V systems built from 12V batteries.
- Compact, sealed enclosure suited to installation in battery boxes, plant rooms and marine or vehicle compartments.
Product Overview
In a 24V bank made from two series-connected 12V batteries, one battery will often charge or discharge slightly faster than the other due to manufacturing tolerance, age or temperature variation. Over repeated cycles this drift widens, leading to one battery being consistently overcharged while the other is undercharged. The Battery Balancer monitors the midpoint voltage between the two batteries and draws current from the higher one whenever the imbalance exceeds 0.1V, bringing both batteries back into alignment.
Because the unit works passively and continuously, it requires no interaction with the charge controller, inverter or battery monitor. It sits alongside the battery bank and does its job independently, which makes it straightforward to retrofit into existing 24V systems as well as specify for new installations. For 48V banks built from four 12V batteries, two Battery Balancers are wired in series to cover both halves of the bank.
Specifications
- SKU: BBA000100100
- GTIN: 8719076020950
- Weight: 0.34 kg
- Activation threshold: 0.1V difference between batteries
- Balancing current: up to 0.7A
Applications
- 24V battery banks assembled from two 12V lead-acid, gel or AGM batteries in series.
- 48V battery banks assembled from four 12V batteries, using two Battery Balancers.
- Off-grid solar installations where consistent charge balance extends battery service life.
- Marine and vehicle 24V systems where space for balancing equipment is limited.
What Is Included
- 1 x Victron Battery Balancer
- Connection cables for wiring across the battery pair
Installation Notes
Fit the Battery Balancer across the midpoint of the 24V bank, connecting to the positive and negative terminals of each battery in the series pair. Confirm battery chemistry and wiring configuration before installation. For 48V banks, install two units in series and verify polarity carefully. As with any DC battery wiring work, use a qualified installer where the system forms part of a wider solar PV, inverter or off-grid installation.
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.