Victron Energy Lithium Battery Smart (LiFePO4) - 12.8V & 25.6V

The Victron Lithium Battery Smart is a LiFePO4 (lithium iron phosphate) battery with built-in Bluetooth, cell balancing, and cell monitoring - the building block of a modern marine, RV, or off-grid house bank. Available in 12.8V and 25.6V, in capacities from 100 Ah to 200 Ah, it can be wired in series, parallel, or series/parallel to build 12V, 24V, or 48V banks up to 20 batteries.

Important - this is a system battery, not a drop-in: Victron Lithium Smart batteries do not contain an internal BMS. They have integrated cell balancing and monitoring whose cables must connect to a separate Victron BMS, which protects the cells and disconnects loads or chargers on a cell over/under-voltage or temperature alarm. Choose a BMS to suit your system (see "Choosing a BMS" below) - we're glad to help you spec it.

Who it's built for

• Cruising boats and liveaboards - a deep, efficient house bank that tolerates partial charging and the constant cycling of life at anchor.
• RVs, vans, and overlanders - up to ~70% less weight and space than equivalent lead-acid, with usable capacity down to a deep discharge.
• Off-grid solar and backup - 92% round-trip efficiency and excellent shallow-cycle performance make the most of every solar amp-hour.
• System builders - pair with a Victron BMS, MultiPlus/Quattro inverter/charger, and SmartSolar MPPTs for a fully integrated, monitored system.

Why lithium iron phosphate, and why Smart

Rugged - thrives on partial charging

Unlike lead-acid, an LFP battery does not need to be fully recharged and isn't damaged by sitting partially charged - service life even improves slightly under partial charge. Add a wide operating temperature range, low internal resistance, and high efficiency, and LFP is the chemistry of choice for demanding marine and off-grid use.

Efficient and light

92% round-trip efficiency (vs ~80% for lead-acid, and far less in the upper state-of-charge range), and up to 70% savings in both space and weight versus an equivalent lead-acid bank.

Long cycle life

Rated for 2,500 cycles at 80% depth of discharge, 3,000 cycles at 70% DoD, and 5,000 cycles at 50% DoD (to 80% remaining capacity), with under 1% capacity loss per 100 cycles.

Built-in Bluetooth

Monitor individual cell voltages, temperature, and alarm status right in the free VictronConnect app - Instant Readout shows the key data on the device list without even connecting, which makes spotting a cell imbalance easy.

Integrated cell balancing and monitoring

Every battery has built-in balancing and monitoring; the daisy-chained M8 connector cables run to your Victron BMS, which handles protection and load/charge disconnection.

Scales to a real bank

Series, parallel, and series/parallel wiring builds 12V, 24V, or 48V banks - up to 20 batteries per BMS (up to ~102 kWh), and up to 5 BMS units paralleled. (For 48V, Victron recommends two 24V batteries in series over four 12V batteries to minimize balancing time.)

Available variants

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

Not sure how to size your bank or which BMS to pair? Get a custom quote from our Seattle team or book a system consultation.

Choosing a BMS

These batteries require one of Victron's BMS units. A quick guide:

• SmallBMS (with pre-alarm) - 12, 24, or 48V systems without an inverter/charger.
• VE.Bus BMS V2 - 12, 24, or 48V systems with a MultiPlus/Quattro inverter/charger and a GX device.
• Lynx Smart BMS (500A or 1000A) - 12, 24, or 48V systems wanting digital integration and a built-in safety contactor to disconnect loads/inverters; common on yachts and RVs.
• Smart BMS CL 12/100 - 12V systems with an alternator.
• Smart BMS 12/200 - 12V systems with an alternator plus DC loads and an inverter/charger.

See all options on our Battery Management page, or call us and we'll match a BMS to your system.

Full technical specifications

Chemistry and performance

• Chemistry: Lithium Iron Phosphate (LiFePO4); 3.2 V nominal per cell (12.8V = 4 cells, 25.6V = 8 cells)
• Round-trip energy efficiency: 92%
• Cycle life: 2,500 (80% DoD), 3,000 (70% DoD), 5,000 (50% DoD), to >=80% capacity
• Capacity / energy loss: under 1% per 100 cycles (25 C, 100% DoD)
• Internal resistance: 0.8-1.6 mOhm by model

Charge and discharge

• Charge voltage: 14.2 V / 28.4 V recommended (range 14-14.4 V / 28-28.8 V)
• Float voltage: 13.5 V / 27 V
• End-of-discharge voltage: 11.2 V (12.8V) / 22.4 V (25.6V)
• Recommended charge current and max continuous discharge: see the variant table above

Operating conditions

• Operating temperature: discharge -20 C to +50 C; charge +5 C to +50 C (do not charge below freezing)
• Storage temperature: -45 C to +70 C; max storage time when fully charged: 1 year
• Humidity (non-condensing): 95% max
• Protection class: IP22

Connection and mounting

• BMS connection: male + female M8 circular-connector cable, 50 cm
• Power terminals: M8 threaded inserts
• Mounting: upright or on its side (never with terminals facing down)
• Max batteries per BMS: 20 (up to ~102 kWh); up to 5 BMS units in parallel

Standards

• Safety: cell/battery standards including UL 1973, IEC 62619, UL 9540A, IEC 62620 (varies by model); EN 60335-1, EN-IEC 62368-1, IEC 61427-1
• Automotive: ECE R10-6

Recommended accessories

• Victron BMS - required; SmallBMS, VE.Bus BMS V2, Lynx Smart BMS, or Smart BMS by system
• M8 circular-connector BMS cables - to extend the battery-to-BMS run
• Cerbo GX or Ekrano GX - whole-system monitoring via VRM
• SmartSolar MPPT and MultiPlus / Quattro inverter/chargers - lithium-ready charging

Installation and sizing help

A lithium bank needs the BMS, cabling, fusing, and charge sources all configured for LiFePO4 - including a charge profile that won't charge the battery below freezing. Two free resources to start with:

• Victron Wiring Unlimited - sizing the DC side of a Victron system.
• Lithium-ion vs lead-acid - how LFP compares.

If you want a second set of eyes on your bank and BMS choice, our certified technicians do system consultations and full custom quotes. Email support@bluemarine.com or call (800) 628-6306.

Frequently asked questions

Is this a drop-in lithium battery?

No. Victron Lithium Smart batteries are system batteries with no internal BMS - they require an external Victron BMS, which handles cell protection and disconnects loads/chargers on an alarm. This gives a more robust, fully monitored system than a self-contained drop-in, but it does mean the BMS and wiring are part of the install.

Which BMS do I need?

It depends on your system voltage and what's connected - see "Choosing a BMS" above. In short: SmallBMS for simple systems, VE.Bus BMS V2 for systems with a MultiPlus/Quattro and GX, Lynx Smart BMS for integrated systems wanting a safety contactor, and the Smart BMS CL 12/100 or 12/200 for 12V systems with an alternator.

Can I charge it in cold weather?

Charge only between +5 C and +50 C. Discharging is fine down to -20 C, but charging a lithium battery below freezing damages the cells - set your charge sources accordingly, and consider a temperature sensor in the system.

Can I build a 48V bank?

Yes. Wire batteries in series/parallel for 12V, 24V, or 48V. For 48V, Victron recommends two 25.6V batteries in series rather than four 12.8V batteries, to reduce balancing time.

What warranty does it come with?

A 3-year limited warranty from Victron Energy on lithium batteries (maximum 42 months from the Victron invoice date), per Victron's 2025 Limited Warranty Policy - note this is shorter than the 5-year warranty on Victron power products, and the 10-year extension does not apply to batteries. Warranty claims require proof of correct battery usage. Blue Marine handles the claim process - email support@bluemarine.com.

Why buy your Victron lithium battery from Blue Marine

• True Blue Victron Energy Distributor - genuine Victron batteries and BMS units, in stock.
• Certified technicians on the phone - (800) 628-6306 to spec your bank, BMS, and charging.
• Free shipping over $49 from our Seattle warehouse.
• 60-day hassle-free returns and local pickup in Seattle, WA.
• Custom quotes and full system design - we'll spec the battery, BMS, inverter/charger, MPPTs, cabling, and monitoring as one package.