The Enerdrive B-TEC ULTRA 200Ah 12V LiFePO4 (Gen3) is built to survive Australian conditions. IP67 rated - fully dust tight and submersible to 1 metre for 30 minutes - with 6,000 cycles, a built-in cell heater and a 5 year warranty.
Serious output, rock-solid safety
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200A continuous discharge with 800A peak (5 sec) for hard-hitting loads like inverters and induction cooktops
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6,000 charge cycles at 80% DOD, using Grade-A prismatic cells
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IEC62619 certified at cell level - electrical, mechanical and thermal safety testing including short circuit, impact, crush, overcharge and thermal stability
- Full BMS - overcharge and over-discharge protection, short-circuit and thermal shutdown, temperature-controlled charging, high/low voltage cutoff
Cold-weather ready and smart control
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Built-in cell heater, BMS-controlled - rated to charge and discharge from -20C to 60C
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On/off isolation switch - cuts power to the terminals for safety or long-term storage
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SOC display - four LEDs in 25% steps, plus a RUN/ALM light that turns red on a fault
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Bluetooth app (iOS and Android) for live SOC, volts, amps, temperature, individual cell voltages and alarms
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CAN / 485 comms via M12-6P Link In / Link Out ports
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Pressure relief valve - equalises internal case pressure with the outside environment, which is what maintains the IP67 rating
Scalable and easy to install
- Up to 4 in series and 4 in parallel
- Battery tray and straps included
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M8 terminals, torque 8-10 N.m
Fitting it legally in an Australian caravan, camper or canopy
If this is going into a caravan, camper trailer or motorhome, the install has to satisfy AS/NZS 3001.2:2022. Here is how the B-TEC Ultra lines up, from Enerdrive's own fitting guide:
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Cells comply with AS IEC 62619 - Clause 5.4.12.3.1
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The BMS covers over and under voltage at cell level, over and under temperature, and over current - Clause 5.4.12.3.3
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Bluetooth state-of-charge monitoring satisfies Clause 5.4.12.3.4. Running several in parallel? Enerdrive recommends adding a standalone lithium battery monitor as well
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Built-in spill tray - Clause 5.4.11.3.3
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Tray and straps included to restrict movement - Clause 5.4.5
What you still have to do: the battery must sit in a designated dry battery compartment. If that compartment is inside the structure it has to share an outer wall or floor, be sealed so gases cannot reach the living space, and be vented to the outside through a minimum 20mm hole positioned so water cannot get in. Access for maintenance must be straightforward.
⚠️ Worth being clear about: IP67 means the battery itself will survive rain, dust and immersion. It does not mean you can bolt it to an open tray and call a caravan build compliant. The compartment rule is about venting gas away from where people sleep, not about keeping the battery dry.
Before you use it
Check no washers or non-conductive material sit under any lug, tighten every connection, confirm the battery is secured, then charge to 100% before first use so the internal and external monitors sync. Run a discharge test with your real loads (inverter included) and feel for hot connections - heat usually means a loose or undersized cable.
What is in the box
- Enerdrive B-TEC ULTRA 12V 200Ah LiFePO4 battery (Gen3)
- Mounting tray and securing straps
- Owner's manual
Key specifications
- Nominal voltage: 12.8V · Capacity: 200Ah (2,560Wh) · Chemistry: LiFePO4
- Continuous discharge: 200A @ 25C · Peak discharge: 800A / 5 sec
- Nominal charge current: 100A (max 200A @ 25C)
- Charge voltage: 14.2 - 14.6V · Float: 13.5 - 13.6V
- Low cell voltage disconnect: 2.80V or below · High cell voltage disconnect: 3.75V or above
- Operating temperature (charge and discharge): -20C to 60C
- Cycle life: 6,000 cycles at 80% DOD
- Comms: CAN / 485, M12-6P · Terminals: M8 x1 positive and x1 negative
- Series / parallel: up to 4 in series and 4 in parallel
- IP rating: IP67 · Cell certification: IEC62619
- Dimensions: 485 (L) x 172 (W) x 232.5 (H) mm · Weight: 23.0 kg
- Warranty: 5 years · SKU: EPL-200BT-12V-G3
Frequently asked questions
How much usable power do you actually get from 200Ah?
200Ah at 12.8V nominal is 2,560Wh of stored energy. Cycle life is quoted at 80% depth of discharge, so plan around roughly 160Ah usable per cycle if you want the full 6,000 cycles out of it. Work out your daily draw in amp-hours - fridge, lights, water pump, device charging, inverter loads - and divide 160 by that number to get realistic days between charges.
Can I charge a lithium battery in cold weather?
Yes, this one has a built-in cell heater controlled automatically by the BMS. It brings the cells up to a safe temperature before charging, so the battery is rated to charge and discharge from -20C to 60C. Most lithium batteries without a heater simply refuse to charge below freezing, which is what catches people out in alpine and inland winter conditions.
Does the B-TEC Ultra meet AS/NZS 3001.2:2022 for caravans and campers?
The battery meets the product-side requirements: cells comply with AS IEC 62619 (Clause 5.4.12.3.1), the BMS protects against over and under voltage at cell level, over and under temperature and over current (Clause 5.4.12.3.3), Bluetooth SOC monitoring satisfies Clause 5.4.12.3.4, it has a built-in spill tray (Clause 5.4.11.3.3) and it ships with a tray and straps to restrict movement (Clause 5.4.5). Compliance of the finished build comes down to the installation - the battery must sit in a designated dry compartment, sealed from the living space and vented outside through a minimum 20mm hole.
Can I mount it externally under a ute tray?
The battery is IP67 - fully dust tight and rated for immersion in 1 metre of water for 30 minutes - so it will survive an exposed mount. Do not confuse that with compliance: for a caravan, camper trailer or motorhome build under AS/NZS 3001.2:2022, it still needs a designated, sealed, vented compartment. That rule exists to direct any vented gas away from the sleeping area, not to keep the battery dry.
Can I add a second battery later?
Yes. Up to 4 in series and 4 in parallel. At 12.8V nominal you can run 4 in parallel; 25.6V, 38.4V or 51.2V systems use 2, 3 or 4 in series and each of those can still be paralleled up to 4 deep. When paralleling, the connecting cables must be equal length and equal size or the batteries will share load unevenly. If you are running several in parallel, Enerdrive recommends a standalone lithium battery monitor on top of the Bluetooth app.
What do the lights on the battery mean?
Press the system button and four SOC LEDs show state of charge in 25% steps. The RUN/ALM light sits solid green while charging or discharging, blinks green in standby, and turns solid red if there is a fault. While charging, the LED for the band you are currently filling blinks and the ones below it stay solid.
What size DC-DC or solar charger suits a 200Ah?
The battery accepts a nominal charge current of 100A and a maximum of 200A at 25C, so it will not be the limiting factor in a normal 12V build. A 25A, 40A or 50A DC-DC charger all work - the larger the charger, the faster it refills while you drive. Most 200Ah builds pair a DC-DC charger with solar so the bank is being topped up while parked as well.
Does it come with a mounting tray?
Yes - a battery tray and straps are included. Position the tray with the straps underneath and not trapped under its feet, fasten it down with hardware suited to the surface, then seat the battery and secure the strap.
What is the difference between B-TEC Ultra and B-TEC Slim?
Ultra is IP67 rated and good for 6,000 cycles at 80% DOD, with a tray and straps included. Slim is IP52, rated to 2,500 cycles, and uses integrated mounting flanges with front-access terminals to fit tighter spaces. Ultra is the choice wherever the battery is exposed to weather, dust or vibration; Slim is for when space is the binding constraint.
What warranty does it come with?
Five years, backed by Enerdrive | Dometic's Australian technical support team. Charge the battery to 100% before first use so the internal and external monitors sync correctly.
Why buy from us
- Authorised Enerdrive dealer - Australian stock, full tax invoice and warranty support
- Straight product advice from people who actually install 12V systems
- Pickup available from our Sunshine Coast store
- Pre-sale and post-sale tech support to get your setup dialled in
- Questions before you buy? Call 07 5211 0841
Need more capacity? Step up to the B-TEC ULTRA 460Ah - same range, 260Ah more storage.
