Charging in the field

[Peter_B 997]

What's the best power supply solution for charging in the field?

Back in the day I used to take a car battery but that was 25 years ago. The couple of times I've raced recently have been indoors with access to power.

Is a car battery still the best solution? If so what sort of battery would be suggested?

My lipo charger has a lead/Pb battery charging mode, could I use that to charge a car battery?

Alternatively to carrying a battery, my road car does have a builtin inverter. Would that be suitable to run a charger from?

[Nicadraus 6196]

A car battery with high ampere (120-150ah) or a UPS are the only options that I know. Otherwise, bring a small generator (1kv or 2kv) to power a couple of chargers, cooling fans (for your chargers & you), and a mini-ref . 

[Mahjik 197]

I'm not that hardcore, but this is something you could look into:

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[Peter_B 997]

Been looking at something like this - https://www.amazon.co.uk/dp/B072FPVDWN/ref=cm_sw_r_cp_apa_i_3Y.ZCb4ZWGSP3

As a sort of cross between a car/leisure battery and a generator. It seems a more flexible solution i.e. I might use it for something other than RC to help justify the purchase.