Description
xVictron Energy 12V 125Ah AGM Super Cycle Battery (M8 Terminals)
The Victron Energy AGM Super Cycle 12V 125Ah battery is a deep-cycle lead-acid battery designed for applications where regular deep discharging is unavoidable. It is built for solar storage, marine, and off-grid systems where a standard AGM battery would degrade prematurely under repeated heavy cycling. The M8 threaded insert terminals provide a secure, vibration-resistant connection suited to professional installations.
Key Features
- 12V nominal voltage with 125Ah capacity, suitable for medium to large off-grid and backup power systems.
- AGM Super Cycle chemistry tolerates deeper and more frequent discharge cycles than standard AGM batteries, extending service life in demanding applications.
- M8 threaded insert terminals allow the use of bolted cable lugs for a reliable, low-resistance connection.
- Absorbent Glass Mat (AGM) construction is maintenance-free, spill-proof, and can be installed in any orientation except inverted.
- Victron Energy manufacture, backed by consistent quality control and wide compatibility with Victron charge controllers, inverter-chargers, and battery monitors.
- Weight of 32.5 kg reflects the substantial lead content that underpins the battery's capacity and cycle performance.
Product Overview
Standard AGM batteries are rated for a limited number of deep discharge cycles before capacity begins to fall significantly. The Super Cycle range addresses this by using a modified plate design and electrolyte formulation that allows repeated discharge to lower state-of-charge levels without the same degree of sulphation and plate degradation. This makes the 125Ah Super Cycle a practical choice for solar systems where the battery may be drawn down daily, or for marine and vehicle applications where shore power is not always available.
At 12V and 125Ah, this battery provides a nominal 1.5 kWh of stored energy. In practice, usable capacity depends on the depth of discharge you operate at and the charge voltage settings on your system. Victron's own charge controllers and inverter-chargers include preset charge profiles for AGM batteries, which simplifies commissioning. If you are using a third-party charger, ensure it supports AGM chemistry and that absorption and float voltages are set correctly for 12V AGM.
The M8 threaded inserts are a practical detail that matters in professional installations. They accept standard M8 cable lug bolts, eliminating the risk of terminal damage from over-tightening that can occur with post-type terminals. This is particularly relevant in mobile and marine environments where vibration is a factor.
Specifications
- SKU: BAT412112081
- Nominal Voltage: 12V
- Capacity: 125Ah
- Battery Type: AGM Super Cycle
- Terminal Type: M8 threaded insert
- Weight: 32.5 kg
- GTIN: 8719076041832
Applications
- Off-grid solar storage systems with daily charge and discharge cycles.
- Marine house battery banks where deep cycling is routine.
- Motorhome and campervan leisure battery installations.
- UPS and backup power systems subject to regular discharge events.
- Telecom and remote monitoring equipment with solar charging.
- 12V battery banks wired in series or parallel for higher voltage or capacity systems.
What Is Included
- 1 x Victron Energy 12V 125Ah AGM Super Cycle Battery (M8 terminals)
Installation Notes
This battery weighs 32.5 kg. Ensure adequate structural support in the installation location and use appropriate manual handling procedures. AGM batteries must not be charged with a charger set for flooded (wet) lead-acid chemistry, as incorrect voltage settings will cause premature failure. For solar installations, set your charge controller to the AGM profile or configure absorption and float voltages to Victron's published values for this battery. Batteries installed in enclosed spaces should have adequate ventilation, as AGM batteries can vent gas under fault conditions. Installation in battery banks of more than one unit should be carried out by a qualified electrician to ensure correct cabling, fusing, and balancing. For grid-connected systems incorporating battery storage, consult a qualified installer regarding G98 or G99 compliance requirements.
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:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- 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.