TITAN 230Ah 24V Lithium Leisure Battery – High-Capacity for Motorhome, Solar, Marine & Off-Grid

Doubling the bus voltage halves the current for the same power. That has practical knock-on benefits for any install pulling serious wattage:

• Smaller cabling: a 3,000W load draws ~250A at 12V but only ~125A at 24V — cable cross-section drops with it
• Lower voltage drop: less heat in the cabling, less waste, more energy where you actually need it
• Cheaper inverters & chargers at high-power levels: the 24V side of the catalogue tends to be priced lower per watt than 12V
• Standard for electric outboards, large yachts, motor caravans and fixed off-grid installations wanting house bank capacity past about 4kWh
• Series two of these to make 48V if your inverter/charge system is built for it

Already on 12V and don’t need this much capacity? The TITAN 280Ah 12V is probably the right pick instead. The 24V 230Ah is for installs where the current-draw maths actively favours 24V.

The industrial 520mm footprint is sized for big floor-mounted lead-acid banks — common in off-grid solar cabinets, marine engine bays and large motorhome locker installs. Where a 24V lead-acid bank would need eight or more batteries in series-parallel, this is one drop-in unit.

All TITAN batteries use lithium iron phosphate (LiFePO₄) prismatic cells — the most thermally and chemically stable lithium chemistry available. No cobalt, no nickel, no off-gassing, no acid. The trade-off is a slightly lower cell voltage (3.2V per cell, 8 cells in series = 25.6V) and lower energy density than the NMC cells used in EVs. In return, you get lifespans that make NMC look disposable: 3,000 to 25,000 cycles depending on use, against NMC’s 1,000 to 2,500.

A cycle is one full discharge plus one full recharge. Cycle count scales with how deep you take each discharge:

• 100% DoD — 3,000 cycles (~8.2 years at one cycle a day)
• 80% DoD — 6,000 cycles
• 50% DoD — 12,000 cycles (over 30 years of daily use)
• 30% DoD — 15,000+ cycles

TITAN cells are long, flat prisms that fill the rectangular case end to end. Cylindrical cells leave gaps between every cell and are much harder to repair (lots of spot welding), so TITAN pays the extra cost for prismatic and passes the capacity gain back to you — especially valuable in this large industrial case where cell density translates directly to pack capacity.

• Aluminium cell casing disperses heat evenly — even at full 200A BMS allowance, peak cell temperatures sit around 45°C, well inside spec
• Thermal runaway territory only starts around 100°C — nowhere near normal operation
• Heater mats also work better with prismatic cells — every cell sits against the heating element, rather than only the outer ring of a cylindrical pack

There’s no single lead-acid battery that comes close to storing 5,888Wh at 24V. The honest comparison is twenty Exide ER550 115Ah batteries connected in series-parallel — or six Exide AGM EP2100s in a 24V series-parallel configuration to get the closest practical match (which actually overshoots slightly at 6,300Wh).

39kg. Not 420kg.

Six AGM EP2100s in series-parallel weigh 420kg and take more than eight times the physical footprint of a single TITAN 24V 230Ah. One TITAN does it in 39kg. That’s a 380kg saving — on a yacht’s waterline, on a motorhome’s payload, on the floor of an off-grid cabin where weight matters when something needs servicing.

99% electrically efficient

Almost every watt you put in comes back out. A great partner for solar — no wasted incoming charge — and happy to accept very high charge currents: up to 200A. With a properly-sized solar array or shore charger, 0–95% in under two hours is realistic.

The 200A continuous BMS at 25.6V comfortably handles the kind of kit a serious off-grid or marine install actually wants to run:

• 5,000W+ inverters: the typical match for a Victron Multiplus II 24V/5000 or similar
• Electric outboards: ePropulsion Navy 6.0 / Spirit 1.0 Plus / Torqeedo Cruise 6.0 sit naturally on a 24V bank
• Whole-cabin air conditioning, heat pumps & electric water heaters
• Whole-yacht house loads: windlasses, bow thrusters, refrigeration, full electric galley
• Solar charge currents to 200A: 0–95% in under two hours when the array is sized for it
• 260A peak covers cold-start surge on big DC motors and inrush on inverter pre-charge

The battery management system is the circuit board between the cells and the terminals. It’s the difference between a lithium battery that lasts 15 years and one that self-destructs in two. Most brands fit an off-the-shelf board with generic parameters. TITAN doesn’t.

The TITAN BMS is custom, with parameters tuned to the exact cell spec used. That lets the cells run right up to their real safe working limits without compromising protection. It’s also how an extra 5–10% usable capacity comes out of every cell — a 230Ah can show as 240Ah fully charged. The bonus capacity isn’t guaranteed batch to batch, but the BMS re-maps its 100% reading automatically so the app always shows what you actually have.

Over-discharge, over-voltage, under-voltage, over-current, short-circuit, over-temperature, under-temperature, cell balance faults and more. All protections are temporary — they either self-reset or clear the moment the battery is put back on charge. The 200A continuous current allowance on this model is class-leading thanks to premium MOSFETs, oversized heat sinks and properly sized internal cabling.

Passive balancing is cheap: cells bleed off to each other and that’s it. Active balancing actively moves energy between cells, protecting the weakest cell from doing all the work. Most brands pick one. TITAN runs both — passive for small voltage deltas, active for larger ones. Particularly important on a 24V pack with eight cells in series, where even small per-cell variances accumulate over hundreds of cycles. Automatic, most active when charging above 3.4V per cell, full effect between 90–100% SOC.

Lithium cannot be charged below 0°C without cell damage. The built-in heater mat wraps the internal pack and kicks in automatically at around 2°C whenever there’s an incoming charge current.

• Draws from the charger first; if the charger can’t keep up, pulls up to 3.6A from the battery itself
• Brings cell temperature to 10°C before routing charge back to the cells
• Expect roughly 20 extra minutes on charge time in the cold
• Discharge is unaffected and works down to −20°C — vital for unheated marine engine rooms and remote off-grid cabins

A fully discharged lithium battery left for months can be a lithium battery that doesn’t come back. Two hibernation modes prevent that:

• Automatic hibernation: triggers after several days of inactivity at low SOC. Battery stops outputting but retains enough headroom to last around 6 months (longer on a pack this size) before any cell risk. Wakes up the moment you put it on charge or open the app.
• User hibernation: triggered by the integrated on/off button on the case — fully shuts the BMS off, dropping standby drain to roughly the cells’ natural ~1% per month self-discharge. Ideal for yachts laid up over winter or cabin systems closed for the season.

Inverters, electric drives, water pumps and compressors can pull 1,000A+ for a microsecond on start-up. Many BMSs read that as a short circuit and trip. The TITAN is tuned to ride those spikes without nuisance shutdowns, so start-up loads behave exactly the way they did on your old lead-acid bank.

Comms ports on the case let the battery talk to compatible inverters, chargers and GX devices. Defaults to Victron CANBUS (VE.CAN and BMS.CAN) and is compatible with Victron DVCC out of the box — particularly important on a 24V pack of this size for accurate SOC reporting and proper charge management on a Multiplus II 24V or similar inverter/charger. The data mode can be switched to other brands or protocols on request — flag it in the order notes and TITAN’s engineers will set it before dispatch.

Known working with:

• Victron GX devices (default) — CAN
• Growatt — CAN
• Sacolar — CAN
• Goodwe — CAN
• Voltronic Power — RS485
• Sofar — CAN
• Sorotec — CAN or RS485
• Deye / SunSynk — CAN or RS485
• Solis — CAN
• Luxpower — CAN
• Pylon Tech — CAN or RS485
• Sol-Ark — CAN
• SRNE — RS485
• MUST — CAN
• SMA — CAN
• MEGAREVO — CAN
• MPP Sola — RS485
• TBB Power — CAN
• Senergy — CAN
• Schneider Electric — CAN
• Aiswei — CAN
• SMK — RS485
• Foxess — CAN
• SunGrow — CAN

Cable kits for every protocol are available separately. Up to 8 batteries can be paralleled (1,840Ah / 47kWh at 24V) with their data merged via Ethernet (CAT-V); 2 in series for 48V on compatible inverters.

Sized to swap straight in for an industrial 520mm lead-acid bank in a 24V series-parallel configuration. Confirm your existing footprint against the 520mm × 268mm × 240mm maximum case dimensions and that your cabling will reach the M8 terminal posts.

• Charger: if your charger has no dedicated lithium preset, AGM or “Sealed” modes are accepted. Aim for max charge voltage of 28.8V (this is a 24V pack — do not use 12V settings)
• Compatible: split-charge relays and DC-DC chargers configured for 24V output
• Terminals: high-performance copper M8 bolt terminals as standard. Two M8 bolts and spring washers are included for direct ring-terminal cabling. Need round (SAE/automotive) terminals? TITAN ships brass adapters free of charge — just leave a note at checkout.
• Mounting: upright is optimal for longevity. The 39kg weight and 240mm height make this a floor-mounted install — not designed for tray or under-seat fitments.

Bluetooth is built in. The free TITAN app (iOS and Android, 10 languages) shows everything that matters in real time:

• Live voltage, current in both amps and watts
• State of charge as a percentage and in Ah
• Individual cell voltages (all 8 series cells visible)
• Internal temperature
• Estimated time to full or empty
• Protection trip history
• Live balancing activity

Handles multiple batteries in series or parallel and re-calculates totals automatically. For a 48V install with two of these in series, or a 1,840Ah parallel bank, the figures on screen match the actual pack.

TITAN backs every grade-A cell battery with a warranty that lasts the lifetime of the battery — fully transferable. The parent company has been trading continuously since 1948, so they intend to be around to honour it in 20 years’ time.

The warranty covers components against premature failure caused by manufacturing faults.

The TITAN 24V 230Ah sits at around £950 new. Over its 10-year design life that’s ~£95 a year.

The lead-acid equivalent — six Exide AGM EP2100s in series-parallel for matching capacity at 24V — is around £3,000 with a 4-year design life, which means replacing them roughly 2.5 times over the same period. Call it £750 a year, with cascading labour each replacement.

If something fails, TITAN repairs the failed module — BMS, balance board, a single cell — rather than replace the whole battery. Lower cost, lower carbon footprint, faster turnaround. As a family of battery specialists trading since 1948, there isn’t much they haven’t already rebuilt.

• 1 × TITAN 24V 230Ah Lithium Battery
• 2 × M8 bolts & spring washers
• 1 × User manual

Need brass SAE/automotive terminal adapters? Free on request — just leave a note at checkout. Comms cables for non-default protocols are available separately.