Total: A$0.00
Just One for Marine Starting & Onboard Power — Now Smarter with Power Reserve!
Upgraded from best-selling 140Ah Version: More capacity, higher CCA, smarter control, yet in same size — a true next-gen marine lithium upgrade.
2-in-1 for Start & Power: With 1200 CCA/ 1300 MCA, it handles both engine starting (for fuel-powered outboard motors), and onboard electronics (fish finders, trolling motors). Save space, shed weight, and cut costs.
Smart Power Reserve: Auto reserves 15% power for a safe engine restart when your battery runs low. Default ON, control anytime via LiTime App.
Reliable Cold-Start Power: With 1200 CCA (@-10℃) and 1300 MCA (@0℃), the battery delivers instant, effortless ignition — even on freezing mornings.
Bluetooth 5.0 Monitoring: Remotely OTA upgrade, control discharge & check status via LiTime APP. No more worry about SOC guessing to avoid the unexpected power outages.
All-Season Ready, Winter Strong: Smart self-heating plus low-temp protection for reliable cold-weather performance.
Fits Most Fuel-Powered Outboard Motors: Compatible with Mercury, Honda, Suzuki, Evinrude, Tohatsu, and more. ABYC E-13 compliant for reliable marine installation.
Compact Yet More Powerful: Upgraded to 165Ah / 2112Wh in the same Group 31 size — 1.65× more energy than standard LiFePO4 and 3.5× more energy at half the weight of lead-acid.
10-Year Lifespan: Built with EV-grade LiFePO4 cells for 5000+ cranking and 4000+ deep cycles. Backed by LiTime’s 5-year service guarantee.
One Battery, Two Purposes — From Engine Start to Onboard Power
Say goodbye to bulky dual setups! LiTime 12V 165Ah dual purpose marine Battery — upgraded from our best-selling 140Ah version — delivers marine starting and deep-cycle power in one compact design. With 1200CCA, it reliably cranks fuel-powered outboard motors up to 300HP, even in cold conditions.
Innovation Never Stops at LiTime
LiTime 12V 165Ah lithium cranking battery for boat raises the bar beyond our best-selling 140Ah model — delivering 1200 CCA (vs 1000 CCA), a 150A BMS (vs 140A), and 2112Wh of energy (vs 1792Wh). Expect stronger starts, steadier output, and extended runtime on every trip!
Start Strong, Power Longer
With 1200 CCA at 14°F and 1300 MCA at 32°F, LiTime 12V 165Ah marine cranking battery delivers instant, confident engine starts in any weather. Whether you’re running a Mercury, Honda, Suzuki, Evinrude, or Tohatsu outboard, you’ll have the power you need to fire up quickly and head out without worry.
Smart Power Reserve, Never Run out When Needed
Out on the water, the last thing you want is a dead battery. LiTime 12V 165Ah lithium marine batteries automatically keep 15% power reserved for a safe engine restart and cuts off discharge when voltage runs low. Manage everything anytime via the LiTime App and enjoy worry-free adventures from launch to landing.
Seamless Bluetooth Control
Check battery status, switch on, or manage discharge directly from your phone. Plus, with the newest OTA upgrades, LiTime 12V 165Ah dual purpose lithium battery always stays updated with the latest LiTime BMS features.
Half the Space, Twice the Energy
LiTime 12V 165Ah marine cranking battery delivers 76% more energy (2112Wh) while saving 50% space and cutting 75% weight compared to two 12V 100Ah lead-acid batteries. Easier installation, more storage space, and longer runtime — all in a compact Group 31 size.
IP67 Protection, Built for Australian Waters
LiTime 12V 165Ah marine starting battery is IP67-rated — fully sealed against water, dust, and salt spray. From calm bays to coastal waters, it delivers reliable power and lasting protection for real boating conditions.
Reliable Charging in Australia's Coldest Conditions
The built-in auto-heating system activates between -20°C and 5°C, gently warming the battery to 10°C before charging. Whether you're boating in Tasmania or camping in the Snowy Mountains, it delivers safe, dependable power when winter conditions hit.
One Battery Does It All
LiTime 12V 165Ah dual purpose lithium battery lets you crank your outboard with confidence and power your onboard electronics all day—lights, radar, fish finder, and more. One battery, no extra hassle.
Built for Safety, Proven to Last
LiTime 12V 165Ah dual purpose marine battery is engineered to power the most popular outboard motor brands — including Mercury, Honda, Suzuki, Evinrude, Tohatsu, and more.
4 Charging Methods
Whether you use LiFePO4 battery charger, outboard alternator, generator, or solar panel, you can fully charge your battery efficiently and reliably.
Important: Please DO NOT use this battery as a starter battery for any type of vehicle, including cars, motorcycles, tractors, etc.
For optimal use of the battery, please observe the following safety precautions:
1. Engine Compatibility: Not compatible with the outboard motor without a built-in regulator, or older voltage regulators.
2. Mounting Requirements: When using in marine starting equipment (such as fuel outboard engines) or in vibrating environments, ensure the battery is securely mounted. It should not be used in areas with severe vibrations, such as tractors.
3. Secure Fastening: Ensure the battery is fastened securely when used with outboard engines or in unstable environments to prevent damage from movement.
4. Cable Length Considerations: Position the battery as close to the outboard motor as possible, as varying cable lengths can result in voltage loss. If the voltage drop exceeds this range, reduce the total cable length.
Yes. With 1200 CCA @14°F and 1300 MCA @32°F, it can reliably crank outboard motors up to 300HP, including Mercury, Honda, Suzuki, Evinrude, and Tohatsu. Before purchasing, check that your motor's required CCA is ≤1200A. If you're unsure, share your motor's CCA/MCA requirements and alternator charging current, and we'll help confirm compatibility.
LiTime 12V 165Ah lithium cranking battery for boat are equipped with a built-in smart Battery Management System (BMS) that limits the charging voltage to 15V or below, ensuring safe and stable operation of the battery cells.
In most cases, outboard motor charging systems are fully compatible with LiTime lithium starting batteries and can charge and operate normally.
However, a small number of outboard engines with special regulator models may not match lithium batteries properly.
If this occurs, there are two recommended solutions:
Yes, you can connect the battery in series and parallel. But here are some limitations to follow:
1. For Starting and Deep Cycle:
Support connecting up to 4 identical batteries in parallel for up to:12V(12.8V) 660Ah battery system.
Note: It can only be connected in parallel instead of a series connection.
2. For ONLY Energy Storage:
Support connecting up to 16 identical batteries for up to: 4 in series as a 48V (51.2V) battery system or 4 in parallel as a 660Ah battery system.
To connect in series or parallel, batteries should meet the following conditions:
a. identical batteries with the same battery capacity (Ah) and BMS (A);
b. from the same brand (as lithium batteries from different brands have their special BMS);
c. purchased in near time (within one month).
1. Charge before first use: The battery may arrive with low SOC due to shipping/storage. Fully charge it with a LiFePO4 charger before use to avoid over-discharge.
2. Starting requirements: Battery voltage must be above 11.5V to start a motor. Each start should not exceed 3 seconds; if it fails, wait 15 seconds before retrying. After 3 failed attempts, wait 5 minutes and check for other causes.
3. Bluetooth activation: Some Bluetooth batteries may arrive “off,” showing 3–5V. This is normal. Simply connect to an AC-DC LiFePO4 charger or MPPT solar controller for 3–10 seconds to activate.
4. Storage tips: For long-term storage, charge to 50% SOC and recharge every 3 months to maintain performance.
Yes. The 12V 165Ah marine starting battery is rated IP67 waterproof and dustproof. However, it should not be fully submerged in bilge water. For added protection, we recommend installing it in a waterproof battery box or mounting it in an elevated or sheltered position such as inside the cabin.
