What an actual bargain from Jaycar?!?
• LiFePO4 battery 270 cold cranking amps (400A peak)
• USB ports x 2 provides up to 2.4A total current
• Reverse polarity and short circuit protection
• Battery and alternator tester
• LED working light
• Dimensions: 185(L) x 100(D) x 50(H)mm
• Battery capacity: 45Ah
Also available on their Ebay with Paypal protection + $7.50 delivery
https://www.ebay.com.au/itm/NEW-LiFePo4-12V-270A-Jump-Starte…
I've found these to be good to jump start a 4 cylinder turbo diesel and they are great for bikes.
Jaycar has left a very sour taste in my mouth after seeing this.. They still haven't fixed the issue and the rep was non-existent after posting the deal.