Advice needed for recharging mods/ships generator

[Pepperty]

A neighbour vapes and works on an old cruise ship, he says that his mods get knackered quickly as he has to recharge built in batteries from a generator power. I wondered if this was true and if there was a better option for him?

I thought an external battery and charger might be safer, does a battery charger give even power when charging ? ... I have no understanding or experience but thought a few of you might know whats best for him as obviously he's unable to nip to the local vape shop and pick up a new mod

Here's some info I found about his ship

The machinery spaces on this vessel is very different to what you will find on a modern vessel, first there is no engine control room and theres is a small alarm panel for a couple of particulars on the main engines and generators which means it is a very manual and "old school" way of watch-keeping.

The age of the ship means that it is mainly D.C electrics/generations plants, A.C retrofit electrics/generation plants, Open circuit breakers, original telegraphs and engine room controlled engines.

Any advice? I must say he is probably hard on his mods as there's barely any paint left on his innokin coolfire and smok alien  I think from a quick glance, but then neither have a record of doing decent paint jobs! 

[VapingBad]

Probably a surge protector would help, unfortunately they are very hard to find for just USB, but there are plenty of mains ones with USB ports on. Or a higher quality USB power supply, I use Audkey ones that are easily available on Amazon, a power pack to charge the eCig may help the eCig, but that would probably then be the bit that failed.

[domesticextremist]

You can get solar powered power banks - just leave them on a windowsill.

[Pepperty]

ah, thought it might be a quandry, thanks for some answers though! I'll pass on info to him