Hi all.
My little son has a toy electric car.
And he is not using it because its too cold here.
And probably he is not going to use it for 4 months.
How can i protect the car's battery. Its 6V - 12Ah.
What if i regularly recharge it even if its not empty?
Thanks in advance.
It depends on what sort of battery it is, some like being stored fully charges and other types prefer being empty.
Guessing it is a sealed lead acid battery, trickle charge with a regulated charger set to about 6.8v every month.
The battery has a small self discharge that needs to be replaced. A couple of hours charge would probably be enough.
Weedpharma
Yes, it says "Non Spillable. Sealed Lead Acid."
Its charger: "DC OUT14.5V 4A"
beingobserver:
Its charger: "DC OUT14.5V 4A"
How do you know it is a 6V battery then? Does it have two of them?
In any case, if that is the correct charger, charge it for 2 hours (only) each month or two.
beingobserver:
Yes, it says "Non Spillable. Sealed Lead Acid."Its charger: "DC OUT14.5V 4A"
A 12v charger on a 6v battery will destroy it.
Please confirm the battery voltage.
Weedpharma
I bought this battery several months ago and i didn't think old charger might not be suitable for the new battery.
Yes, confirmation again:
Battery is: 6V 12Ah.
Charger: DC OUT 14.5V 4A
Should i buy a new charger then?
Thanks.
You need to explain this (much) better.
Which parts are original equipment? What was the original battery? Why would it have been changed? Is there in fact, only one battery?
Have you been using it since changing the battery?
Pictures might help.
It is possible that the car may contain charging circuitry which regulates (switchmode) a 14V power supply to charge a 6V battery, but that would be unusual.
Lead acid batteries need to be kept fully charged to avoid deterioration, so a full
top-up charge every month is ideal, at a minimum every two months.
A 6V 12Ah SLA battery needs a 6V charger designed for lead acid batteries of that
approximate capacity. A 12V 4A charger is suitable for a 12V 30Ah car battery, not
your battery.
There is lots of information about charging sealed lead acid batteries (and other types) at batteryuniversity.
Paul__B:
Pictures might help.
Paul__B:
Which parts are original equipment? What was the original battery?
Paul__B:
Have you been using it since changing the battery?
As i said before i didn't realize that this charger is 14.5V
Do you think the battery is deteriorated?
I'll buy a new charger 
Thank you all.
Well, all we can say is that if that is the original charger, and the battery - one battery - is the one supplied by the company as a replacement for the one that failed, then presumably the car contains the correct circuitry to match the two.
Give it an hour charge every month or two.
Are you able to follow the battery charger input socket wiring to the battery to see if there is anything to control the charging?
If you see a direct connection to the battery, I would not be using that charger!
Are you able to see the motors to see what voltage they are rated at?
Weedpharma
Hi. A picture says a thousand words.
Look at the picture again, the label in the top right hand corner of the battery says;
2X 6V, this is a manufacturers pack of two 6V batteries, connected in series. Hence 12V charger.
Have you got a DMM to measure the voltage at the plug/socket that connects the battery pack to the car?
Tom.....
You omitted to say you bought replacement battery FROM the the OEM battery supplier or manufacturer and was suppled with an OEM battery, we all thought you went to a battery shop and bought a generic.
(The give away? Battery and charger same brand)
TomGeorge:
Look at the picture again, the label in the top right hand corner of the battery says;
Good catch Tom, thank you
TomGeorge:
Have you got a DMM to measure the voltage at the plug/socket that connects the battery pack to the car?
There are four pins at battery socket (attached the picture of it) and i can measure 2 x 6.5V.
I mean there are 2 GNDs and 2 VCCs.
TomGeorge:
(Battery and charger same brand)
Yes, charger and battery has the same brand.
So, what is the your last opinion?
Should i charge it a few hours every month to keep it healthy?
Hi, yes, a few every month, don't let the battery freeze, so inside at room temp while in storage.
Tom......
A couple of hours each month is plenty.
Weedpharma
Thank you guys
When I come to visit you Ersan, can I take a ride on it, as I think with new batteries it will go so fast? 
Your son can take a ride on my big motorbike, oui, evet, ja ?
Just use your multimeter to check the battery volts when on charge and see that the meter reads between 12.6 and 13.8 volts.
Tom, was the one who caught that it was a 2 x 6 volt battery pack
Paul
(I don't know why i don't get email when a new reply posted)
I agree, Tom was very careful.
Paul, my son saw your motorbike and loved it so much.
Especially the blue one. So, you can exchange your motorbike with his toy car
I'll check the battery with the multimeter then.
Thanks.
