12v dinghy inflator recommendations?

Either get a small vacuum cleaner that also blows, maybe a mains one via an inverter, or don't bother.
Most of these things are more faff than a footpump.
Some of the stirrup-pump style manual pumps are very good, I see people with blow-up canoes using them.
 
This Bravo - https://www.force4.co.uk/bravo-btp12-12v-pump-manometer.html - is pretty good. The cheap ones are only fans and cannot achieve a decent pressure - that Bravo is a two stage pump - it uses a fan to get the initial charge in quickly, then switches to a piston pump to get up to the required pressure. It is able to get my wife's inflatable paddle board up to 1 bar in a couple of minutes which is pretty good.
 
I agree with people who say there are good, cheap stirrup pumps. But if you want a battery powered one why don't you get a bicycle pump (12v)? (I bought one for about $12)
 
Taking the description as gospel, but with the expectation that it's actually rubbish and that Amazon will be taking it back, I've ordered one of these. Not only claims to do beds and bikes (copes with decent flow and pressure) but also an auto off at predetermined pressure. Reading the description makes it sound like the image is wrong and must have a digital display, but we'll see and I'll report back.

51CtHLBaLhL.jpg

https://www.amazon.co.uk/Compressor...0&sr=8-2&keywords=12v+airbed+and+bicycle+pump

It's to replace one of these, which did the initial blow up well, needed a footpump to finish, but burned out under mysterious circumstances when borrowed by an offspring.

61PCB1EZNOL._SX679_.jpg
 
Taking the description as gospel, but with the expectation that it's actually rubbish and that Amazon will be taking it back, I've ordered one of these. Not only claims to do beds and bikes (copes with decent flow and pressure) but also an auto off at predetermined pressure. Reading the description makes it sound like the image is wrong and must have a digital display, but we'll see and I'll report back.

View attachment 71146

https://www.amazon.co.uk/Compressor...0&sr=8-2&keywords=12v+airbed+and+bicycle+pump

It's to replace one of these, which did the initial blow up well, needed a footpump to finish, but burned out under mysterious circumstances when borrowed by an offspring.

View attachment 71147

Pumping up tyres and pumping up dinghys require different pumps. The one you have bought will do small volume/high pressure where you really want high volume/low pressure. Unless it has two settings, I can't see it being any good for the intended use.
 
if you want a battery powered one why don't you get a bicycle pump (12v)?

And how many litres of air are in your bicycle tyre? Maybe one? Even a small dinghy is several hundred litres so you’ll be there all day waiting for a tyre pump to fill it.

You also don’t need (or want) the pressure that a tyre pump can supply.

That’s why.

Pete
 
Thanks for the replies. I'll try something cheap.

I've got a few different cheap pumps (I'm terrible for leaving them at home, in the car, on the boat, so having spares is useful) plus a LVM. In theory the LVM is great because it certainly pumps the dinghy up pretty hard. But in practise I find you still want to top it up with a foot pump to get that last bit of air in, and I usually carry the foot pump with me in the dinghy in case of leaks, so I have it to hand anyway. The major downsides of the LVM are the need for a dedicated power connection (can't just stick it in any 12v socket) and the screaching noise of the thing.
So the cheap ones (inc a £5 Aldi one) are absolutely fine. You need a few more strokes on the foot pump but overall it makes no difference.

My next experiment is going to be trying to power one of these cheap pumps using a cordless drill- at a fiver I won't be heartbroken if I end up ruining a working pump.
 
Pumping up tyres and pumping up dinghys require different pumps. The one you have bought will do small volume/high pressure where you really want high volume/low pressure. Unless it has two settings, I can't see it being any good for the intended use.

I thought I'd been pretty clear. I don't expect it to be any good, but the experiment will cost me nothing.
 
My old syndicate had a Coleman rechargeable dinghy pump. Worked well and was still going strong last summer which was probably its 4th season in use. The same pump is available without the built in battery, just plug in to the boat’s 12v supply, which is what I want for the current boat.
 
The originally LVM then Rule ' Hi Speed Inflator ' - brilliant kit but I'm sure you know HAS to be clamped directly to the battery, as the current draw would burn out normal boat wiring - is still available it seems, but I was saddened to see no longer at Force 4 so I'd grab one quick, mine has lasted 40 years fairly hard use.

https://www.seaware.co.uk/rule-lvm-high-speed-inflator-pump.html

+1 best value in the long run. Mine is 30 years old and unlike cheep ones, does not require a manual pump to finish in order to get the right pressure.

Www.solocoastalsailing.co.uk
 
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