Gruber
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KidsWheels
Gruber
HobbyMasters
KidsWheels
HobbyMasters
Gruber
KidsWheels
for 12v vehicles that NEED to be upgraded to 18v
By johnny1333
#42116
My 2 sons have a Barbie take along tunes jeep (painted black and blue of course!) and they are getting bored with 12V. I have a 6V 4.5AH battery lying around. If i wire that in series with the 12V, would it be a noticable difference? There are no circuit boards (I don't think) and 2 wires from the battery, positive and negative. Also, if i upgrade it to 18V, how would i hold the accessories at 12V? It has horn and headlights. Sorry if i left anything out.
By skearton
#42598
It would be a noticeable difference for sure.. as far as running you accessories separate, I don't have an answer for that. :D Could you get a spare 12v just for accessories?
By skearton
#42599
It would be a noticeable difference for sure.. as far as running you accessories separate, I don't have an answer for that. :D Could you get a spare 12v just for accessories?
User avatar
By jparthum
#42912
You can use different AH batteries, but you run a higher risk of severely discharging the lower AH battery, which then may permanently lose capacity, or not recharge at all. :(

The accessories can remain connected only to the 12V battery and will have no effect on the 18V 'drive-train' circuit.
By johnny1333
#43009
ok, so hook the accessories up like normal, and if i wire in the 6 volt and 12v and it completely discharges the 6v because of different ah, could it hurt the 12V? i don't really care about the 6v, but i don't want to ruin my 12V
User avatar
By jparthum
#43558
Yes, that's correct. :)

The 12V battery wouldn't be directly subjected to more severe discharging due to the circuitry, but since even a severely discharged battery (6V) can still provide Voltage, a child may tend to keep driving for a longer amount of time before the vehicle becomes too slow to be any fun - which could then severely drain the 12V battery. :|
Last edited by jparthum on Thu Nov 10, 2011 6:45 pm, edited 1 time in total.
By wkearney99
#44130
jparthum wrote:The 12V battery wouldn't be directly subjected to more severe discharging due to the circuitry, but since even a severely discharged battery (6V) can still provide Voltage, a child may tend to keep driving for a longer amount of time before the vehicle becomes too slow to be any fun - which could then severely drain the 12V battery. :|


It's important to remember that excessively draining these kinds of batteries greatly harms their lifespan. You really do not want to be running them until dead. Well, not unless you like spending a lot of money on new batteries...
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