I have no battery problems but I like to keep the battery topped up.
I usually leave it on trickle charge in the winter by connecting direct to the battery.
I expect many are aware though that the battery is in the boot and to get access ye have to remove the spare tyre...and lift up the lid of the battery box to gain access.
I have a 12 volt cigarette lighter socket wired directly to the 12 volt supply....are there any issues in trickle charging directly through the 12 volt plug...?....It would be a lot easier as well as quicker than having to fart around with removing the spare tyre etc...?
Basically then...is it safe to trickle charge via the 12 volt cigarette lighter socket....?
I think it'll be OK ...I put a connection socket through the boot near side wheel arch; on the vertical flat area at about the 11 o'clock position with respect to the rear wheel ...the wires from the socket go through to the battery. I can reach that easily behind the rear wheel to plug in the battery charger when needed without opening the boot. The +ve wire to the battery has an inline fuse - I wouldn't use this socket to draw power out but for charging it works fine I didn't use a ciggy lighter but a similar 12v plug and socket that has a waterproof flap to close over the socket when the cars being used and the trickle charge not plugged in
It might be worth putting a meter on the output from the charger at the charger, and also on the wiring at the battery (battery disconnected) to see what the voltage drop is across the wiring in the Bug. If it drops too much then you might not get the charging effect that you are looking for. There's another question here which is, is it sensible to keep a battery on trickle charge for months on end? I believe I wrecked a battery that way, within only about 15 months from new, using a £7 charger from eBay - oops ! So I now use a CTEK from time to time. If the engine is started every fortnight or so, and run until warm, the battery is likely to last a lot longer. Continuous charging leads to steady evaporation of the water inside and when the plates are exposed to air the exposed area not only no longer participates in the energy storage function, but also corrodes and the debris from the corrosion spalls and falls onto lower areas of the plate, under the surface, preventing those areas too from functioning properly. Eventually the battery capacity gets too low to crank the engine. There is a lot of debate about whether a battery can be restored, but in my experience it can't, and it's not economic even to try.
I too once fried a battery with a trickle charger that I'd left connected for a long time ...but these modern ones that have the self adjusting charging profiles like CTEK ought to be much better. I've never found anything that will restore a battery once its failed
The proper trickle chargers will take the battery through a charging cycle where they will take the charge in the battery up and down, but always keep it in a healthy range. These are good to keep connected all winter and can improve the health of a battery. They cannot repair a damaged battery though only a flat one. As stated above there will be a voltage drop if you plug into the lighter socket, this will probably affect how the charger monitors the battery and could lead to it doing the wrong thing. I have a short lead with a socket sitting close to the battery within the boot, but easy to get to, that I plug my charger into. The cheep chargers that produce a low amp output but keep it constant are not safe to leave connected for a long period. They will eventually fry the battery.
If you have a question your better of starting a topic in the main forum.
andrea: Need your help: i am looking for hinges... anybody can help?
Jan 7, 2019 21:44:41 GMT
mybug: Anyone know the whereabouts of PTO 365M? It was mine back in the early 80s and some pix have surfaced here (apparently from ebay around 5 years ago) so is it still around?
Jan 14, 2019 13:58:31 GMT
karl: Andrea, just seen your post. if you're still looking try putting it in the for sale wants thread.
Jan 14, 2019 19:58:09 GMT
mybug: Searched and spooled through every image/video/old ad I can find on the internet, I'm thinking that PTO 365M is not around any more. May be resting in a shed, but given the small and tight-knit Bug community, I'd have thought that someone would know it.
Jan 16, 2019 14:19:51 GMT
Biggles: I think David and Jim Williams are doing the Hinges ....
Jan 27, 2019 9:41:59 GMT
Dave Powell: David did me some great hinges.
Feb 11, 2019 21:52:09 GMT
mikebentley: how does this shout box work?
Feb 16, 2019 13:40:51 GMT
nigel1962: Hi mark ,did you get my reply
Feb 18, 2019 20:44:05 GMT
crabo: Does anyone have the registration plate numbers or the chassis numbers for the Rothmans Bugs (six of). I friend of mine has just purchased a white Bug (700E) in need of restoration, reg URC 42L, chassis no BR62313, eng no 9816.
Mar 27, 2019 19:41:42 GMT
jefferdp: All, does anyone know the size of the headlights on the bug, Some say there 7/6" but that seems a little large to me. Also where can you get replacments now?
Apr 4, 2019 16:54:48 GMT
fmb4: My Bug has nothing but a hole where the canopy latch should be. Any help in finding one would be greatly appreciated!
Apr 9, 2019 14:55:30 GMT
Biggles: fmb4 One on ebay now
Apr 13, 2019 9:16:03 GMT
heartnut: Quick question: If I fit a Lucas 15/16/18 alternator, is it true that it will heed fibreglass work to fit it as the body is bigger than the original generator?
Apr 26, 2019 19:14:47 GMT
rolydog2001: I have fitted a Dynamator to get around this, looks original and gives the same output.
Apr 27, 2019 19:25:09 GMT
heartnut: Thanks for that - good tip!
May 2, 2019 20:21:08 GMT
tpg: can you please help? my son is nearing the end of a 4 year restoration of his mini cooper car and we are trying to locate 2 of the above wheels to make up a set. Would you know any of your colleagues who may know anybody who would sell us 2 alloys. Any inf
May 12, 2019 13:59:52 GMT
tpg: Sorry the wheels are Dunlop D1 LP922 X 10inch. thanks
May 12, 2019 14:01:25 GMT
tpg: Hi dose anybody have 2 DUNLOP D1 LP922 ALLOYS for sale? URGENTLY required
May 25, 2019 9:53:39 GMT
Stiffy: Hi folks. if your new to the forum questions are best answered on the forum. The shout box is not seen by many.
Sept 9, 2021 23:10:52 GMT