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Ultimatron Ultra Slim LiFePO4 Battery 12V 120Ah


30 Day Return Policy

Best Price Guarantee

Free Shipping
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Compared with traditional batteries, our lithium iron phosphate batteries (LiFePO4) has many advantages:

  • 10 year manufacturer's warranty
  • The safest technology, without risk of fire or explosion
  • Long service life
  • Constantly improving storage capacity
  • High stability even under extreme loads
  • No memory effect, no need for full charge and discharge cycles
  • High performance even under extreme conditions
  • Deep and regular discharge and charging efficiency
  • Small size and light weight
Integrated Battery Management System (BMS)
To allow the control and the charge of the different elements of an accumulator battery and to protect it against overcharging, over voltages and overheating.

Integrated Bluetooth 4.0 monitoring
You have all important battery data always on your smartphone or tablet. The application displays the data in real time.

NoteCan be connected in parallel when the voltage difference is less than 3V.


Electrical Performance
  • Nominal Voltage: 12.8V
  • Nominal Capacity: 120Ah
  • Capacity: @ 20A 300min
  • Energy: 1536 Wh
  • Resistance: ≤25 mΩ @ 50% SOC
  • Self Discharge: <3% / Month
  • Cells:  Cell 3.2V40Ah
Charge Performance
  • Recommended Charge Current: 20A
  • Maximum Charge Current: 60A
  • Recommended Charge Voltage: 14.6V
  • Charge Cut-Off Voltage: <15.2 V (0.5 ~ 1.5 s)
  • Reconnect Voltage: >14.4 V
  • Balancing Voltage: <14 V
Discharge Performance
  • Continuous Discharge Current: 60A
  • Maximum continuous Discharge Current: 150A
  • Peak Discharge Cut-Off Current:  450 A (5 ~15 ms)
  • Recommended Low Voltage Disconnect: 10 V
  • Discharge Cut-Off Voltage: >8.4 V (50 ~ 150 ms)
  • Reconnect Voltage: >10 V
  • Short Circuit Protection: 200 ~ 600 μs
Mechanical Performance
  • Terminal Type: Andersen
  • Terminal Torque: 80 ~ 100 in-lbs (9 ~ 11 N-m)
  • Case Material: Metal
  • Enclosure Protection: IP65
  • Monitoring: Bluetooth 4.0 + LCD
Temperature Performance
  • Low temperature heating: 0 °C charging and heating
  • Discharge Temperature
  • Charge Temperature
  • Storage Temperature
  • High Temperature Cut-Off
  • Reconnect Temperature


  • Certifications CE / UN38.3 / UL1642 & IEC62133
  • Shipping Classification: UN 3480, CLASS 9

Product Dimensions

  • Weight: 18.5kg
  • Dimension (L x W x H): 600 x 65 x 270 mm

Shipping is fast and FREE across Australia for orders over $200 on select brands. For more details about shipping see the full shipping page here.

We offer 30 Day Returns. If you decide you don't need a product we'll take it back so long as it is in original condition and has not been used within a 30 day period. See the full details here.

Found a better price online? We'll match it or beat it if we can. 

All you need to do is let us know via phone or email ( and we'll let you know what we can do.

You will need to provide evidence of the better price online and it must include any shipping or taxes charged by that site. I.e. It needs to be the total price.

This only applies to new products, it does not apply to used condition products.

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at The Boating Emporium.

  • Free Shipping Australia wide when you spend $200+. 
  • Price Match Guarantee. Best prices online guaranteed.
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Great Service. We pride ourselves on the best service, anywhere.
  • Your Satisfaction Guaranteed. We handpick our products for quality, we know you'll love them. But is there is ever something wrong, we'll fix it.


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