titian
Active Member
Cheaper & more versatile than a charger.
110 volt battery charging
- Thread starter dylanwinter
- Start date
theoldsalt
Well-Known Member
Try this: 240/110v input with 12v output. Only £5.99 with free P&P
http://www.ebay.co.uk/itm/Battery-C...C-110V-220V-/261887389358?hash=item3cf9b46eae
http://www.ebay.co.uk/itm/Battery-C...C-110V-220V-/261887389358?hash=item3cf9b46eae
westernman
Well-Known Member
My Sterling battery charger says:-
dylanwinter
Well-Known Member
theoldsalt
Well-Known Member
That's about right for 24/7 trickle charging - or at that price buy two for a bit of a boost.
Uricanejack
Well-Known Member
It seams really odd a British marina would only supply 110. it wont work anything on a British boat. not sure what they use in Europe 110 in some places i think so visitors may be happy.
If you need a charger by one on line from US. you may still need to change the plug.
In any case I keep my boat on a mooring. It survives on engine charging just means i have to be a bit careful not to run both batteries down. I did try one of those cheep solar chargers it did help a bit. Solar might not work so well in Nairn but east coast is supposedly sunnier. Other solution take battery home and give her a good charge.
If you need a charger by one on line from US. you may still need to change the plug.
In any case I keep my boat on a mooring. It survives on engine charging just means i have to be a bit careful not to run both batteries down. I did try one of those cheep solar chargers it did help a bit. Solar might not work so well in Nairn but east coast is supposedly sunnier. Other solution take battery home and give her a good charge.
Heckler
Well-Known Member
Seems really odd, my thoughts to! Is this really correct Dylan? I thought EU stadardisation meant that everywhere is supposed to be the same where the public is concerned. I know work place portable tools are supposed to be 110v but this situation seems very strange!
S
KellysEye
Well-Known Member
It is possible to rewire a 110 v plug to produce 220 v which is enough power for anything you have and is quite normal in a house. Get a pro to do it thoungh, we had it done in Puerto Rico by chandler that sold it.
ProDave
Well-Known Member
You cannot change the laws of physics. If 110V is all that's at the socket, then no amount of socket changing will convert that 110V to 220V. for that you need a transformer.
Now of course in this case the 110V will be derived from a transformer, so if you could connect to the input of the transformer you could of course get your 230V. But do you really think the harbour master is going to stand and watch you while you completely rewire their electrical installation?
FWB
N/A
From Visit my Harbour...
"surprise here; they’ve built a lovely marina with nice wide pontoons and fairways but have not bothered with electricity or water on the pontoons or an amenities block ashore. For some reason known only to themselves there is an electricity box at the top of the gangway, 50 yards from the hammer head, but that supplies 110v so if you have US electrics and a long cable you are laughing, otherwise you are stumped."
KellysEye
Well-Known Member
> then no amount of socket changing will convert that 110V to 220V.
What the chandler did was rewire the terminals in the 110v socket and I can assure it works as we used it in Puerto Rico. The only changes we made is the socket from 240v to 110v and a thicker wire.
What the chandler did was rewire the terminals in the 110v socket and I can assure it works as we used it in Puerto Rico. The only changes we made is the socket from 240v to 110v and a thicker wire.
VicS
Well-Known Member
Perhaps you can post some more details about this !
Pro Dave , as most of us know, is an electrician. I think he knows what he is talking about!
JumbleDuck
Well-Known Member
Puerto Rico uses the American electrical supply system, which is (see above) 110V two-phase. It sound to me as if your chandler rewired a plug to go across both phases, rather than single phase to neutral.
ProDave
Well-Known Member
That could be what happened. I doubt if that's possible in Dylan's case.
Heckler
Well-Known Member
My gennies in my oil field camp were 208v phase to phase, 115v phase neutral, IIRC. presume he is saying if he could get at the original 3 phase supply he could get a phase to phase 220v, although looking at the later posts, it looks as if they have a transformer in somewhere. A H& S person misinterperating the regs?
There was a cock up with the procurement of the gennies by my american materials guy. I made them work.
S
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Heckler
Well-Known Member
I think you will find they use phase to neutral for 115v and phase to phase for 208 ish
see here https://en.m.wikipedia.org/wiki/Three-phase_electric_power
S
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JumbleDuck
Well-Known Member
Agreed. He'll either have 110V single phase or, more likely, 55V two-phase available
As far as I can tell from Google, Puerto Rico uses 110V two phase, just like the US, so phase to neutral is 110V and phase to phase is 220V.
William_H
Well-Known Member
Much talk about volts between phases etc but in the end Dylan has an outlet with 110 volts AC. Options might be to get a 110v to 240 v transformer to feed his existing battery charger. Or buy another charger not necessarily cost effective for a short stay. Or as he is apparently doing carry battery to a place which has 240v AC.
Once upon a time battery chargers and other low voltage devices used an iron cored transfromer with much expensive copper. The input voltage was directly related to the ourput voltage and output voltage varied quite a bit according to current drain. (poor regultion)
Then cam the switch mode power supply. This used cheaper but more complex electronics. Usually it delivers a precise voltage regulated to deliver over a wide load range and a wide range of input voltage. This latter for smaller powered devices allowed the Asians to make devices suitable for both US 110v and rest of the world 240v AC. This becomes clear on small plug pack and computer and other device chargers. Just look at the label.
Unfortunately on larger powered devices it is easir to limit in put voltage to just 240v or 110 v in the design. Hence for a powerful battery charger you may find some placared 90 to 260v input and others much more resricted like 220 to 250v input.
Dylan may be able to find a device charger or even an old computer power supply which will deliver 12v from the 110v AC available. Unfortunately 12v DC from acomputer power supply might be ok to run some devices and lighting but will not charge a 12v battery. It might be a useful float charge however. ie stop the battery going completely flat or bring it up to 12v and supply a load. Any low powered device may help him to avert that walk of shame with a battery and charger to the far shed. Much depends on what he has available. Even a lap top 240v (90 t 260v )charger delivering 18volts with a 12v bulb in series might do the job. The bulb or a resistor is to limit the charge current. Check the charge current with an amp meter and stay within the rated current of the charger. Or just get solar panel (and some sunlight). good luck olewill
Once upon a time battery chargers and other low voltage devices used an iron cored transfromer with much expensive copper. The input voltage was directly related to the ourput voltage and output voltage varied quite a bit according to current drain. (poor regultion)
Then cam the switch mode power supply. This used cheaper but more complex electronics. Usually it delivers a precise voltage regulated to deliver over a wide load range and a wide range of input voltage. This latter for smaller powered devices allowed the Asians to make devices suitable for both US 110v and rest of the world 240v AC. This becomes clear on small plug pack and computer and other device chargers. Just look at the label.
Unfortunately on larger powered devices it is easir to limit in put voltage to just 240v or 110 v in the design. Hence for a powerful battery charger you may find some placared 90 to 260v input and others much more resricted like 220 to 250v input.
Dylan may be able to find a device charger or even an old computer power supply which will deliver 12v from the 110v AC available. Unfortunately 12v DC from acomputer power supply might be ok to run some devices and lighting but will not charge a 12v battery. It might be a useful float charge however. ie stop the battery going completely flat or bring it up to 12v and supply a load. Any low powered device may help him to avert that walk of shame with a battery and charger to the far shed. Much depends on what he has available. Even a lap top 240v (90 t 260v )charger delivering 18volts with a 12v bulb in series might do the job. The bulb or a resistor is to limit the charge current. Check the charge current with an amp meter and stay within the rated current of the charger. Or just get solar panel (and some sunlight). good luck olewill
VicS
Well-Known Member
William_H;5412931 Or just get solar panel (and some sunlight). good luck olewill[/QUOTE said: