Board logo

fitting a car battery on BEC
nickw2000 - 31/1/12 at 11:57 AM

are there any issues with fitting a normal size car battery on a BEC

my fireblade engine is run by the standard small battery but its killed easily with my electric reverse.

i fear it wont start the car up if i use the reverse

so something with bit more amps would work?


matt_gsxr - 31/1/12 at 12:05 PM

It will work fine with a big battery, just a shame to have to carry around the extra mass


roadrunner - 31/1/12 at 12:53 PM

Wouldn't fitting two bike battery's be lighter than a car battery.


britishtrident - 31/1/12 at 12:58 PM

Run the reverse motor off a separate battery with a split charge relay (or better an "intelligent" split charge relay) between the two batteries.

You could also fit a master switch between the two batteries for emergency use

Tanya batteries is a reputable on line supplier of all types of battery. http://www.tayna.co.uk/


JoelP - 31/1/12 at 01:02 PM

How about devising a small lever to raise the revs whilst you use the reverse motor? Ie prevent stalling. Or maybe make it reverse a bit slower to reduce the effort.


loggyboy - 31/1/12 at 02:01 PM

Surely just running the reverse motor when the car is running is the answer?


mark chandler - 31/1/12 at 02:04 PM

The charging load that can be drawn a car battery will fry the regulator, if unlucky it will then move on and fry the generator windings.

NOT RECOMMENDED !

Regards Mark


40inches - 31/1/12 at 02:49 PM

quote:
Originally posted by mark chandler
The charging load that can be drawn a car battery will fry the regulator, if unlucky it will then move on and fry the generator windings.

NOT RECOMMENDED !

Regards Mark

Can this be confirmed
Plenty on here running a car battery with bike engine. I have gone the route suggested by BT.
Should I be worried?


roadrunner - 31/1/12 at 03:11 PM

I use to use a car battery before I fitted a BEC battery and I had no issues. From memory, the car battery was in for more than a year.
Brad.


mark chandler - 31/1/12 at 03:50 PM

893 - 919 Fireblade engines are particularly weak in this respect, I have fried more than one regulator as the car is left standing for a long time between runs, same again when I ran one as a road bike.


russbost - 31/1/12 at 04:05 PM

I've always used an 063 car battery with the ZZR1400 engine in the Furores, never had any charging issues.


andyfiggy2002 - 31/1/12 at 05:43 PM

my 2004 megablade kit supplied by the factory came standard with a car battery i assume because it drew more current with a fuel pump, extra lights etc & the bike having such a fragile reg/ rectifier, i didn't fancy hauling all that lead around i switched back to the a bike battery & an uprated reg/rect

[Edited on 1/2/12 by andyfiggy2002]


Proby - 31/1/12 at 06:30 PM

My 2001 MegaBlade Kit (Full Kit Form inc battery) came with a bike battery? So unless they changed things.

Just get out and push, good exercise!


40inches - 31/1/12 at 06:47 PM

I would think that charging a flat car battery may stress the charging circuit, mine is always on a maintenance charge so
the engine would only have to keep the batteries topped up. Possibly.


nickw2000 - 8/2/12 at 09:19 AM

People with the same problem as me, with the electric reverse killing the battery, what battery do you have? How many AH? And does it work?


40inches - 8/2/12 at 09:49 AM

quote:
Originally posted by nickw2000
People with the same problem as me, with the electric reverse killing the battery, what battery do you have? How many AH? And does it work?


I fitted the smallest 330cca battery I could find. Drives the car over a 2x2 easily, not on the road yet, but don't foresee a problem.
Mega Fuse (now 250amp)
Mega Fuse (now 250amp)


nickw2000 - 7/3/12 at 07:23 PM

what battery from odessey is recomended please? for starting the engine with no loss of battery power after using elec reverse?


Custardpants - 7/3/12 at 08:14 PM

My MK came with a car battery but looking at getting something smaller as my electric reverse has been taken off....


andyfiggy2002 - 4/4/12 at 02:59 AM

westfield specify a car battery for their BEC,s
link


Johneturbo - 4/4/12 at 07:24 AM

Apart from having an extra tail light, i don't see why you'd need a car battery, apart from having a reverse/heater/wipers/radio


adithorp - 4/4/12 at 07:38 AM

I've got a Powervamp PV15 (now PVR15 I think). Same sort of output as a 063 but half the size and weight. Been on 4 years now and never let me down. Stands for relativly long periods over winter, is never disconnected with the immobiliser LED going and never fails to fly over. I don't have reverse though but just do what most of us do and avoid reverse situations. They do a nice ally battery carrier as well.

As said running a BEC with a flat battery can fry the charging circuits but using the altermator to charge a discharged battery can do that on any car. They aren't designed to charge flat batteries. Avoid it if at all possible whether its on a BEC a CEKit or a tin-top.