@RHB123 - lots of good suggestions above so just to add my two-penny worth:
> avoid the mini pump things - you'll spend ages pumping up the size tyres found on e-bikes. Those pumps are for the roadies who like to be minimalist and carry everything in their jersey pockets
> Personaly I'd not rely just on CO2 inflators. Firstly, when replacing a tube into the tyre, it is often much easier to partially inflate it and then insert it into the tyre. Secondly, I have known the tube valve to freeze in cold weather when inflating with CO2. Thirdly, how many CO2 cannisters do you take - I've been on rides where I've experienced multiple punctures.
If you do inflate with CO2, be sure on getting home to let out the gas and re-inflate with an air pump (track pumps are best)
> Patches - don't rely on those not requiring glue (e.g. Scabs), they have a high failure rate. use instead, patches and glue - personally I've had good results from those sold by Wilko but the are good products around.
> And if you're a complete novice at this game, give YT a watch.
> Let me assure you that preparation in all its guises will pay off. I learnt my lesson as a kid when half way across Romney Marsh I punctured - no kit at all and a long walk back to Folkestone - never been caught out since.