Deep Cycle Battery and/or a Power Pack ?

Hi Doddy for the cost of the pack i would def buy one . I have two 80 amp deep cycle but always carry the pack if we go out anywhere . I think mine cost about 100-150 from super cheap . It has saved me once in the boat and a number of times camping with other people with dying batteries . We just use our to power the shower .Light portable they are a good thing .

Doddy,

The Blue Apple Thumper is the best solution.
I have a 75Ah Thumper which also includes the ability to jump start your vehicle if required. It can be charged from your vehicle alternator via the included In-Car charge kit which includes an Isolator to protect your vehicle's starting battery and a pair of plug-in jumper leads.

No ties with Home Of 12 Volt (the Manufacturer/Supplier), I am merely a satisfied customer.

we have used a projecta brand 900a/h jump starter for lighting around the campsite via the 12v ciggie socket, plus a few jumpstarts on a nissan 4.2 diesel and a few other stranded vehicles without any dramas. less than $150 a few yrs. ago. regs. phil.

Do you know if the DC 80AH battery has a CCA (cold cranking amps) rating? Probably not since it's a deep cycle but it's worth asking.

I trust you realise all of the Power Packs use Sealed Lead Acid batteries which are more akin to deep cycle then starter battery construction.

What I'm getting at is if your 80AH battery has the CCA to start your Prado then I would use that instead of lugging around another bit of kit. Of course you'd need to remove it from the caravan and use jumper cables instead of trying to jump it through the battery isolator (if it has a jump start function).