-
Fast, Free Shipping
-
30-Day Money-Back Guarantee
-
Hassle-Free Warranty
-
Lifetime Customer Support
Payment Method
WattCycle 24V 314Ah Ultra LiFePO₄ Battery for Marine House Power, Caravans & Off-Grid Solar | 8.04kWh, 300A BMS & Bluetooth
$1,999.99 AUD
$2,799.99 AUD
⚡ Pre-order — This item is available for pre-order and is expected to ship in mid-December 2026.
BLACK FRIDAY STARTS EARLY
BUY 2+, SAVE 5%
Buy 2 or more of the same 12V or 24V battery.
Auto-applied at checkout. No code needed.
BLACK FRIDAY PRICES. NOW.
00
Days
00
Hours
00
Minutes
00
Seconds
- 8.04 kWh in One Battery. Store energy for boat fridges, lighting and water pumps at anchor, or for everyday loads in a caravan or off-grid cabin. One 25.6 V, 314 Ah battery provides the same nominal storage as two 12.8 V, 314 Ah batteries connected in series, with fewer battery-to-battery connections.
- 300A BMS for Demanding Loads. Rated for up to 300A continuous charge and discharge, with built-in voltage, current and temperature protection. Pair with a suitably sized 24V inverter for 230V appliances.
- Check Your Charge Before Leaving Shore Power. View your remaining charge, battery voltage and temperature in the WattCycle app within Bluetooth range.
- IP65-Rated Metal Housing. The enclosure is dust-tight and resistant to water jets. Allow for 510.3 × 362 × 242 mm (L × W × H) and approximately 60 kg per battery when planning your installation.
- 6,000 Cycles at 80% Depth of Discharge. Designed for repeated charging and discharging in touring and off-grid solar systems.
- Choose 1–4 Batteries to Match Your Daily Use. Select 8.04, 16.08, 24.12 or 32.15 kWh of nominal storage for a compatible 24V system. Multi-battery capacities are based on matching batteries connected in parallel. A supported 51.2 V configuration can provide up to 64.31 kWh.
Battery Safety, Testing & Compliance
- IEC 62619 — lithium battery safety.
- UN 38.3 — lithium battery transport testing.
- ECE R10 — automotive electromagnetic compatibility type approval E57*10R06/03*1949.
View More
Pack Size
Availability
Special Add-Ons
WattCycle 29.2V 15A LiFePO4 Battery Charger – Aluminium Shell for 24V Batteries
$199.99 AUD
$249.99 AUD
Free local shipping for all orders, except some areas need extra shipping cost.
Our batteries come with a 5-year warranty, which can be extended to 7 years total upon product registration. Accessories are covered by a 1-year warranty, and like-new (refurbished) batteries include a 1-year warranty.
For full terms, conditions, and claim details, please visit:
-
Fast, Free Shipping
-
30-Day Money-Back Guarantee
-
Hassle-Free Warranty
-
Lifetime Customer Support
Payment Method
Powerful Capacity in a Compact Package
WattCycle 24V 314Ah Ultra Lithium Battery, delivering an impressive 8 038 Wh of usable energy in a cabinet just 18.9″ × 14.25″ × 9.53″ and weighing only 153.99 lbs. This 24V 314Ah Lithium Battery brings high-density power to your RV, marine or off-grid system without the bulk of legacy setups. Its slim footprint makes installation a breeze, whether you’re retrofitting an existing panel or designing a new energy hub.
Premium Cell Chemistry with Smart Protections
Under the hood, WattCycle use EV Grade A+ cells form the backbone of our 24V 314Ah LiFePO4 Battery, paired with a 300 A BMS that shields against over-current, short-circuit, over-charge and over-discharge events. You’ll enjoy up to 15 000 cycles and a decade-long service life—far beyond typical LiFePO4 modules. A solid aluminum frame and rugged ABS+PC casing (UL94 V‑0 rated) complete the military-grade build.
Leaner, Stronger Alternative to Lead-Acid
WattCycle 24V 314Ah Ultra Lithium Battery cuts weight by more than half while offering over 15% more energy and 3× the cycle life. Its consistent power output and sustained depth of discharge ensure you won’t be sidelined by sudden voltage sag or premature capacity loss. Upgrade to this 24V 314Ah Lithium Battery and feel the difference in performance and durability.
Rock-Solid 300 A BMS for Heavy-Duty Use
A top-tier 300 A battery management system monitors each cell in real time, automatically halting unsafe conditions and preserving your investment. With eight layers of protection—thermal, over-current, short-circuit, cell-imbalance and more—you can push heavy inverters and motors up to 7 680 W without hesitation. It’s safety and power hand in hand for demanding applications.
Real-Time Monitoring via Bluetooth
Stay in control with Bluetooth 5.0 connectivity and the WattCycle mobile app. Check voltage, state of charge (SoC), temperature and health metrics right from your smartphone—no extra hardware needed. Whether you’re on-site or miles away, this 24V 314Ah Ultra Lithium Battery keeps you informed so you can plan charging cycles and maintenance around your schedule.
Flexible, Scalable Energy Architectures
Design your ideal system with up to 2 series by 4 parallel configurations—build a 51.2 V, 1 256 Ah powerhouse for a maximum 64.31 kWh usable bank. Need more peak power? Support up to 15.36 kW of continuous load. From a single 24V 314Ah LiFePO4 Battery to a full rack, WattCycle scales with your needs
Versatile Applications for Every Scenario
From home‑backup and off-grid cabins to marine vessels, RVs and critical UPS systems, the WattCycle 24V 314Ah Ultra Lithium Battery delivers steadfast performance. Its lightweight form factor streamlines installation in boats and campers, while the robust design endures rugged outdoor use. Wherever dependable, long-lasting energy is needed, this battery stands ready.
Tech Specs
| Dimensions | 18.9 × 14.25 × 9.53 inch | 480 × 362 × 242 mm |
| Weight | 153.99 lbs | 69.85 kg |
| Standard/Maximum Continuous Charging | 62.8A/300A |
| Maximum Continuous Discharging | 300A |
| Over-current Discharge Protection | 310A±10A |
| Over-current Charge Protection | 310A±10A |
| Short-Circuir Current Protection | Support |
| Release Condition | Cut Load |
| Charging High Temperature Protection | 140°F~158°F / 60°C~70°C |
| Discharge High Temperature Protection | 149°F~167°F / 65°C~75°C |
| High Temperature Protection Release Condition | Drop by 41°F~59°F / 5°C~15°C |
| Charging Low Temperature Protection | 23°F~41°F / -5°C~5°C |
| Discharge Low Temperature Protection | -13°F~5°F / -25°C~-15°C |
| Low Temperature Protection Release Condition | Rise by 41°F~59°F / 5°C~15°C |
| Rated Voltage | 25.6V |
| Standard Charging Voltage | 29.2V±0.2V |
| Shipping Charging Voltage | 25.6V~29.2V |
| Shipping Capacity | 50% |
| Cycle Life | 6000@80%DOD |
| Self Discharge Rate | <3%/Month |
| Series & Parallel Connections | 4 Parrallel(Max) 2 Series(Max) |
| Communications | Support |
| Case Material | ABS+PC/UL94 V-0 |
| Storage Temperature | 32°F~140°F/0°C~60°C |
| Terminal Bolt Size | M8 |
24V 314Ah Ultra Battery FAQs for Boats, Caravans & Off-Grid Solar
Start with how much energy your boat draws from the battery each day. If you use 5 kWh per day, choose the 2-battery pack for two days without recharging. It provides 16.08 kWh of nominal storage, with about 12.9 kWh available for planning if you start fully charged and keep a 20% reserve. Include inverter losses when estimating your daily use.
You may be able to keep some of your equipment. Ask a marine electrician to check your shore-power charger, solar controller and alternator charging setup before swapping batteries. The charger needs a compatible LiFePO₄ profile that meets WattCycle’s 29.2 V ± 0.2 V charging specification. This model is intended for house power, so retain a separate battery rated for engine starting.
You can keep suitable 12V appliances as part of a properly designed 24V conversion. A correctly sized 24V-to-12V DC–DC converter can supply 12V lights, pumps and other accessories. Your installer should also check the inverter, chargers and battery compartment against the applicable Australian caravan installation requirements. Allow for approximately 60 kg per battery when checking available payload.
It depends on the air conditioner’s actual draw, how long it runs and what else is on. If it draws 1,000 W while running, four hours of compressor run time uses about 4 kWh before inverter losses. Add your fridge and other overnight loads, then check that your inverter can handle both the running load and start-up surge. Send us the air conditioner and inverter model numbers if you’d like help estimating how many batteries you need.
Check the inverter’s battery input voltage on its label or in the manual. For a single battery or a parallel pack, look for a 24V battery input and confirm that your inverter or solar charge controller supports the required LiFePO₄ charging settings. If your inverter requires a specific battery communication protocol, send us the exact model number before ordering so we can check compatibility.
I ordered for of the new what cycle batteries with the 3 amp balancers. A few weeks in and there's still holding with less than 10 millivolts between cells. This is a great improvement over the older batteries which had drifted 120 millivolts apart in 6 months.
Have not used yet. However, nice piece of gear. Iam using for remote astrophotography rig. Unfortunately, it crappy weather right now but looking forward to getting it all up and running. Solid item
I purchased this (after a lot of research) for my travel trailer for when I go boondocking. It powers my fridge, lights and a few things through the night and still stays above 13 v.
Everything is fine. I did have some issues with shipment tracking; the carrier simply arrived at my home with the package without any prior notice.
Regarding the 48V 314Ah LiFePO4 battery with an active balancer: it works perfectly. The BMS performs better than the one in the first unit I purchased, showing a smaller voltage differential between the cells.
However, I have a request: when two batteries are configured in parallel (assigned addresses 1 and 2), the SOC (State of Charge) display bar on the second unit turns off. I would like it to remain illuminated so that one can check the SOC percentage at a glance without needing to access the LCD panel.
I mention this because, upon starting the system, both units must be turned on using their respective "ON" buttons. Curiously, the second unit indicated "Output ON / Charge ON," yet it was not actually providing any power. I discovered this by checking the configuration in the app; the second unit showed an orange warning, instructing me to disconnect the load and output to reset the system. Once I did this, it began working correctly. The issue is that, without checking the app, there is no way to know a fault has occurred—there is no external orange LED indicator.
For this reason, I believe the front-facing SOC LED display should remain illuminated even when the batteries are configured in parallel.
Thank you.
Excellent customer service!
We ordered four batteries for our solar power system and unfortunately discovered damage to two of them. However, the issue was resolved impressively quickly and smoothly.
A special thank you to Justine for her friendly, professional and efficient service. She kept us informed throughout the process and made everything straightforward.
We truly appreciate the excellent after-sales support. Thank you, Justine and the WattCycle team!
Really too early to know for sure how it will do, but so far seems fine for our purposes. We have it installed in an RV and only running DC appliances. Charging with up to 580 watts of solar.
I received the battery but the cables for it did not come in the box. This is the second issue I have had with unfulfilled shipments. I have tried calling customer service numerous times over several days and nobody answers and Online support seems like they could care less about me not receiving the cables
I bought one battery to connect to a power station. i liked how it worked, so i bought another. Then bought a WC inverter and a 3rd battery.
I love the product so far. Would have been nice if Fedex did not drop it on its face multiple times. Service team was great and helped me resolve the issue. A+ Support Team.
I've been using this battery for 5 days now, paired with the EcoFlow Delta 3 Plus. It works flawlessly
I bought the 100 A battery and with it to supply the electric motor for my kayak and what can I say the runtime is incredible over 8 hours more than I thought and the access via Bluetooth also works great thank you again
Products are great but the website makes it hard to compare size and prices. You can't back track web pages to look at different products.
i had an issue with one of my batteries which had to be replaced. the support given by lyra was fantastic as it was not an easy delivery. i was in malta when this occured and heading to sicily and on to tunisia. dpd cannot deliver to any european islands or africa. eventually a contact was coming from greece so lyra managed to get the battery sent there after a lot of work. well done lyra you are a credit to wattcycle.
I have buying two 314Ah Batteries.it would be better to choose between the normal batterie cable or the conection batterie cable,without extra fee in the shop. What shall i do with three cables now?
The WattCycle 12000 Super is a capable 12kW split-phase all-in-one inverter with a standout 200A bypass, dual MPPTs rated for up to 24kW of PV, and strong 250A hybrid charging that exceeded expectations once running, handling real loads, surge, and whole-home scenarios better than anticipated. That said, the learning curve is kinda steep thanks to a mediocre manual with unclear or incomplete guidance on settings like neutral-ground bonding and priorities, and the included Solarman app plus Wi-Fi dongle is pretty bad—flaky connectivity, limited usability, and extremely slow update speed that make monitoring frustrating. Getting it talking cleanly to Solar Assistant was also a tough process with workarounds needed rather than plug-and-play support. Overall it’s a solid hardware performer for the money if you’re comfortable digging into forums and videos, but the documentation and monitoring ecosystem hold it back from being truly hassle-free. If you are just looking for the ultimate all in one inverter with a 200a bypass this is definitely it.
DE accu is perfect doch de 12Volt lader is een probleem gevalletje.
De ventilator maakt te veel geluid in de wagen.
I would like the app to be more comprehensive, with more information on the status of the cells.
I recently purchased the watt cycle 12,000 Watt inverter I've been having an issue with it and I've been trying to contact cycle for well over a week at this point I've used both methods that they supply phone number where no one ever picks up it's just an automated system and you leave a message and no call was ever returned also email basically the same effect as the call method write a letter wait wait wait no reply I can't honestly say if this is a good product or not because I can't get it to work and no support to help figure it out greatly disappointed and I highly recommend you shop elsewhere
