Victron Energy AGM Super Cycle Batteries (VRLA)

The Victron AGM Super Cycle is an advanced sealed AGM battery built to survive deep discharges that would kill an ordinary lead-acid battery. A new positive-plate paste resists softening and new electrolyte additives reduce sulfation, so the Super Cycle tolerates repeated deep cycling - including occasional discharge all the way to 100%. It's a true drop-in (no BMS), maintenance-free, and a bit lighter and more compact than Victron's standard deep-cycle AGM.

When to choose the Super Cycle

Victron recommends the Super Cycle for applications where you expect occasional discharge to 100% DoD, or frequent discharge to 60-80% DoD - exactly the kind of cycling that prematurely ages a standard AGM. If your bank routinely gets drawn down hard (liveaboard house loads, daily off-grid cycling), the Super Cycle is the AGM to reach for. For lighter-duty or starting use, the standard GEL & AGM Deep Cycle range is a more economical pick.

Who it's built for

• Liveaboards and daily-cycle off-grid - a lead-acid bank that shrugs off the deep, repeated discharges of everyday use.
• Boats and RVs - sealed, maintenance-free, mountable in any orientation except terminals-down, and a true drop-in with no BMS.
• Budget-conscious deep cyclers - much of lithium's deep-cycle tolerance at a lower up-front cost, when you don't need lithium's weight savings or efficiency.

Why the Super Cycle

Exceptional 100% DoD performance

Tested to withstand at least 300 cycles at 100% depth of discharge - including a punishing two-hour rest in the discharged state that damages most batteries within 100 cycles. At shallower depths it lasts far longer (see cycle life below).

Lighter and more compact

The new chemistry is slightly smaller and lighter than Victron's standard deep-cycle AGM of the same capacity - easier to fit and handle in mobile and marine installs.

Low internal resistance

Slightly lower internal resistance than the standard deep-cycle AGM, for strong charge and discharge performance.

Sealed and maintenance-free

VRLA construction - no watering, no routine maintenance, safe to mount in any orientation except terminals-down.

Available variants

All variants are sold on this page - choose your capacity from the variant selector above.

Model	Capacity (C20 / C10)	L x W x H	Weight	CCA	Terminals
12V / 100Ah AGM Super Cycle	100 Ah / 90 Ah	10.2 x 6.6 x 8.5 in	57 lb	500 A	M6 insert
12V / 125Ah AGM Super Cycle	125 Ah / 114 Ah	13.0 x 6.7 x 8.4 in	73 lb	550 A	M8 insert

Sizing a bank or weighing Super Cycle vs lithium? Get a custom quote from our Seattle team or book a system consultation.

Cycle life

• ≥ 300 cycles at 100% DoD
• ≥ 700 cycles at 60% DoD
• ≥ 1,000 cycles at 40% DoD

As with any lead-acid battery, shallower discharges greatly extend life - but the Super Cycle is the Victron AGM designed to take the deep ones.

Charging

• Charge with a Victron charger or MPPT set to the AGM profile.
• Absorption: 14.2-14.6 V (normal) or 14.6-14.9 V (fast recharge); float 13.5-13.8 V; storage 13.2-13.5 V.
• Charge current preferably 0.2C or less.
• Temperature compensation -24 mV/°C for a 12V battery, centered at 25 C; required below 10 C or above 30 C for long periods.

Full technical specifications

• Technology: sealed VRLA AGM (Super Cycle chemistry); copper terminal inserts (M6 on 100Ah, M8 on 125Ah)
• Maintenance: maintenance-free for life
• Rated capacity: at the 20-hour (C20) discharge rate, 25 C
• Reserve capacity: 170 min (100Ah) / 220 min (125Ah)
• Mounting: any orientation except terminals facing down

Recommended accessories

• Victron Blue Smart chargers - with a built-in AGM profile
• SmartSolar MPPT charge controllers - for solar charging
• BMV-712 Smart or SmartShunt - accurate state-of-charge monitoring

Installation and sizing help

Need help sizing a bank or deciding between Super Cycle AGM and lithium? Our certified technicians do system consultations and full custom quotes. Email support@bluemarine.com or call (800) 628-6306.

Frequently asked questions

How is the Super Cycle different from a standard AGM deep-cycle?

The Super Cycle uses an improved plate paste and electrolyte additives that resist sulfation and plate softening under deep discharge - so it survives repeated deep cycles (including occasional 100% DoD) that would shorten a standard AGM's life. It's also slightly lighter and more compact.

Does it need a BMS?

No. It's a drop-in lead-acid battery - just charge it with the correct AGM profile.

Should I get this or lithium?

The Super Cycle gives you much of lithium's deep-cycle tolerance at a lower up-front cost. Lithium still wins on weight, usable capacity, charge speed, and efficiency. If those matter, look at the Victron Lithium range; if budget and a true drop-in matter more, the Super Cycle is an excellent choice. We're happy to help you compare.

What warranty does it come with?

A 2-year worldwide limited warranty from Victron Energy. Blue Marine handles the warranty claim process for you. Email support@bluemarine.com.

Why buy your Victron batteries from Blue Marine

• True Blue Victron Energy Distributor - genuine Victron batteries, in stock.
• Certified technicians on the phone - (800) 628-6306 to size your bank and compare options.
• Free shipping over $49 from our Seattle warehouse (heavier batteries may carry a freight charge).
• 60-day hassle-free returns and local pickup in Seattle, WA.
• Custom quotes and full system design - battery, charger, monitoring, and cabling as one package.