Solarking 12.8V 20AH Lithium LiFePo4 Battery

(No reviews yet) Write a Review
$15.00 (Fixed Shipping Cost)

SolarKing lithium batteries are the future of battery storage. Lithium batteries are much lighter than traditional lead acid batteries and deliver unrivalled cycle life, more than 4 times more cycles compared to lead acid batteries.

These smaller capacity lithium batteries are perfect for battery back-up, security lighting, alarms and other applications when high capacity and small size and weight are required. The batteries are fully sealed and a built-in battery management system for safety protection.

If you are replacing an existing lead acid battery you can continue to use your same battery charging system as the built-in battery management system with do the rest for you. You will also notice that lithium batteries charge more efficiently than lead acid batteries so the recovery will me much quicker.


      • 20AH Lithium
      • 2000+Cycles
      • Built in advanced BMS
      • Lightweight
      • Can be connected parallel
      • Note: This battery can’t be used to start motor vehicles or placed in series


  • Dimensions: 150x100x100mm
  • Product Weight: 2.16kgs
  • Operating Temperature Range: -20°C ~ +60°C
  • Voltage: 12.8VDC
  • Amperage: 20AH
  • Max Discharge Rates: 10A
  • Max Continuous Current: 10A
  • Max 10 Second Pulse: 15A
  • Min Charge Current: 1A
  • Nominal Charge Current: 3A
  • Max Charge Current: 10A
  • Charge Voltage: 14.8V
  • Maximum Charge Voltage: 15.0V
  • Cycles @ 100% DOD 2000 Cycles
  • [email protected] 80% DOD 3000 Cycles
  • [email protected] 50% DOD 3500 Cycles
  • [email protected] 30% DOD 8000 Cycles
  • Low Voltage cut out: 10.5VD
  • Terminal: T6.5

Package Includes:

  • 1x 20Amp Lithium Battery


More Details on - Solarking 



  • I have SolarKing lithium batteries in my off-grid rural residence (10×100Ah in a series parallel 24v system with passive balancing) & based on that success over last 15 months helping to deliver 5kWh daily, I've just installed 2x150Ah (second generation, parallel 12v) in our caravan and yacht with a huge weight saving. My only gripe is that I would have liked to have better manufacturer advice on optimum charging profiles so I can configure my MPPT solar chargers. Other than that, so far I'm very happy.

    - Mark, Nsw

  • My 2 solar king 100ahs have replaced 2 x120ah agms and are holding up well with inverter to the point where I am using inverter and induction cooker more and even using electric hot water on the right day.

    - Graeme, Woodonga

  • I can recommend these, my van is set up with 2x200ah Solarking lithium batteries and 900W solar panels. I have a 3000W inverter and run a 2.5kw household inverter A/C unit during summer daytime no problem.

    - Peter Booth, TAS

  • I have Solarking 150ah, it's has been awesome. I haven't started my car in 4 weeks I have 100w solar panels in the roof, my 45lt still on hold 2-4 degrees. Batteries sits around 13.2v all day everyday.

    - David Maunder, Adelaide.

  • I am running the solarking 100ah bought from trailer camper Aus in Canberra as wanted a local warranty. Running from 6 months now, no issues, does exactly as described. Mounted under my rare draw wing, paired with RedArc BCDC1225D.

    - Mitchell, Canberra.

  • My 3 SolarKings are going okay from what I can tell. My van is parked up under a carport at present, so the 4 roof-mounted solar panels aren't working. However, I've added a small folding solar panel to the side of the carport, where it gets the morning sun for maybe 5 or 6 hours tops.
    Every week or so I go and check through the boot door, where I can look at the Enerdrive DC2DC unit and it always says "FUL", so I guess the batteries are being maintained okay.
    When I did have it out they were running the van quite okay. I only tried the 1800w inverter once, and that was to boil a 1000w little kettle I bought to use instead of the gas kettle. That little kettle was pretty slow, but the batteries did the job okay.
    We tend not to run anything "big" off the inverter....have a microwave which we've only used once and a washing machine that we've never used at all. They're the only big draw items we'd be likely to use.
    Not to worry, I'll keep my fingers crossed that these ones last me for at least 5 years....and I'll be happy to replace them after that if need be.

    - - Rodney, WA

  • I've just ripped out four 100ah AGMs from the caravan and installed three Solar King 100ah Lithiums. I'm still using the Projecta 50amp 240v charger and the Morningstar 60amp solar gizmo. The caravan didn't previously have a DC-DC charger, so I'm fitting a Enerdrive DC2DC 40+ amp charger using the existing Anderson plug wiring. Weight saving is enormous: 220kg out and about 50kg back in. I couldn't be happier with how these units are performing.

    - Roachie

  • I'm absolutely wrapped in my SolarKing battery. I purchased a 150a for our Jayco Flamingo and couldnt be happier. We typucally camp offgrid and run a 12v Waeco 110L fridge in the van. With a Redarc 1224D BCDC charger and about 300w solar it is happy days. I installed a lithium of another brand late in 2019 and it was a fail. I thought the benefits of Lithium were just too good to be true. Im really pleased to say it isnt and the SolarKing has met all my needs...and then some.

    - Carlo