kids 12v battery

[ZmOz]

Re: kids 12v battery

Originally posted by KenImpZoom:<br /> I dont know how a lead acid battery would hold up in this type of use. Usually you run the toy till it runs out of battery, and from what I have heard, this isnt good for lead acid batteries.

No, it's not good for them...that's probably why tomatolord is changing alot of batteries, and why fisher price charges alot for them. <br /><br />tomatolord - your batteries will last longer if you make sure they get charged immediately after use, even if they're not completely dead. You should also tell your kids to charge it up when it starts to slow down rather than after it completely dies. Using a good charger like a "Battery Minder" with a built in desulphator might help to extend the life of the battery.

 

[tomatolord]

Re: kids 12v battery

well that is part of the problem<br /><br />fisher price aint dumb<br /><br />they have a special adaptor for the battery and a special trickle charger - they say to trickle charge for 8 hours but I find that is real long time and many times I would forget and leave it charging over night and THAT will fry the battery very quickly.<br /><br />I am going to call the local medical supply guys and buy some used wheelchair batteries from them.<br /><br />From what I heard most people swap the battery out after a year because they do not want to be stranded and they are gel batteries as well.<br /><br />I do have to get a gel battery charger as well, apparently with sealed batteries you need to use a trickle charger so they do not overheat, they do have vents and the issue is that the gel leaks out and then cannot be replaced so the battery dies a quick death.

 

[wilkin250r]

Re: kids 12v battery

9V is a little tingle on the tongue, 12V is downright painful.<br /><br />However, the above information posted is correct. You can grab both posts of a 12V battery and it won't hurt a bit. In fact, beyond actually getting hurt, I bet you can't even FEEL it, even with wet skin.<br /><br />Dry skin has an average resistance of about 300,000 ohms, with large variations based on moisture content, body fat, ect. and I believe wet skin is about 30,000 ohm. At 12V, these would give about 0.00004 Amps (0.04mA) and 0.0004 Amps (0.4mA), respectively. For DC current, most people cannot even feel anything below 0.6mA with the majority of men not able to feel anything below 1.0mA at their fingertips.<br /><br />Pain is a subjective term, but it obviously begins at a much higher level than that of detection, I'd say somewhere around 50mA, with loss of muscle control (unable to let go of live wires) starting around 70mA.<br /><br />I'm an EE, just to add to my credibility...

 

[briannh1234]

Re: kids 12v battery

I would get away from the fisher-price charger. Again - there not stupid and have probably sold you the cheapest charger that they can manufacture. The cheap ones will not shut off when done charging and that can also be a damaging as running the battery flat.<br /><br />A 12 volt battery is a 12 volt battery. I have charged my little 12 volt cordless drill batteries with my WalMart smart charger and it worked great. I use the 2 amp setting on all small batteries.