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Tech Consumer Advice


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Portable 12v power pack


Dragon_Heart

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Having a little trouble finding what I need.

I don’t need to jump start the car, inflate the tyres, use it as a torch or even as a radio … I just need a safe portable 12v power pack with say a 20Ah battery to power our cool-box when the car is parked up on days out.

You must be able to recharge it from a 12 volt supply or via a mains adapter.

Say £50 ish

Any ideas ?

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wee eddie

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What's wrong with buying an extra 'Car' battery.

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spuds

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Quite a number of places sell these items with all the whistles and bells at various prices, but from my own personel experiences I have found that the non-commercial types can be unreliable, especially if they are not kept at peak condition.

Most 'cool-boxes' can be plugged into the vehicle socket during the journey, and with ice packs, they should retain some degree of coolness at the journey end.

Using a standard 'sealed' battery might be a good substitute, as wee eddie as already suggested. If you have an home battery charger, then plug it in on the return home. This method could also act as a replacement for your own vehicle, if needed at a later date.

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ICF

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Bit more expensive than £50 (They also do a 125Ah version) http://www.amazon.co.uk/Ring-Automotive-RPP110-Complete-Compressor/dp/B001NIBW5K

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ICF

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Soz link mix up LOL

Ring 20AH

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woodchip

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These are Gell battery's so will not leak if tipped over copy paste the link into browser address bar as its not loading the link icon in PCA

click here

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Woolwell

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It is usual in caravanning to use a leisure battery for this type of use. Slightly different to a car battery and asfer.

Probably the best place to look for the type of charger/battery that you want is a caravan/camping store.

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Forum Editor

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woodchip

I've sorted out the link for you.

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woodchip

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FE thanks very much I was having lots of problems with the Page not fully loading and icons not showing, even with Java Script turned off.

The Link I gave is for Deep Charge Battery's Like caravan battery, they use them on Disabled Scooters, So that they last longer on a Charge. Car Battery's only give out Big amps on Start as that's what car battery's are made for

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Dragon_Heart

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Gel/AGM batteies, as used on mobility scooters are OK BUT you can not use automotive or wet type chargers so I would also need to buy a new charger.

I have looked on the 'net and found plans for a DIY plywood carry case for a leisure battery so may try that option.

Thanks for your ideas :-)

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carver

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Car batteries are not suitable for this sort of thing, they are not designed to be used in this sort of way.

You need a leisure battery, these are designed so that they can be run over a long time until they have only a 30% charge left in them with out damage being done to them before they need a recharge.

Car batteries on the other hand are designed to be used with a min 80% charge in them, a car battery will not really be able to manage the deep cycle that a leisure battery will cope with.

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