|
Post by katt on Oct 10, 2018 21:55:28 GMT -5
There was a time when the so-called battery experts claimed that battery's couldn't be accurately tested with meters. You had to read the battery acid electrolyte levels. Raise your hands, how many have electrolyte testers in your tool boxes. As cheap as i am i try to save on everything even try to recover dead batteries i find for the cars, you can charge it and electrolyte and voltage will read good, but if battery is shorted inside as soon as you turn starter voltage will drop instantly or depends it might let you start 2-3 times then voltage drops permanently, only way to really test battery is under load.
|
|
|
Post by SMALL CC TEK on Oct 13, 2018 23:54:07 GMT -5
Cheap battery tester from Harbor freight the digital yellow one works . A meter and two 6 inch pieces of coat hanger so you can test each cell is the best method i have found . If one is way low why waste time charging it .. pile tester is the fastest method charge it let it sit and cool for a 30 min then put a load on it ! If your battery has 8v most times they charge even 6v it will charge but might have a dead cell... 1 Volt or 1.5 work or if you have Rc cars and you have a I max charger or something like it they work awesome for reviving a battery ...
|
|
|
Post by frank50e on Oct 17, 2018 19:46:58 GMT -5
Seems we are spending more on testers than on new batteries.If you are certain your stator is operating properly which can be done with a free to five dollar voltmeter you should fine.I run the battery down with a few ignition off runs if the stator or approached 13.2 amps it’s ok.Batteries can be had for 25 bucks.JMO
|
|
|
Post by katt on Oct 18, 2018 10:30:43 GMT -5
I never had to use external charger in a year it charges in scooter. So yeah if you have some issues check your electrical system.
I use this pretty handy has 2 usb sockets to charge phone and shows voltage, make sure you hook it up to regulated voltage that goes to battery i burned one when unplugged rectifier and revved.
|
|
|
Post by Senna1Rossi on Oct 21, 2018 12:02:36 GMT -5
Seems we are spending more on testers than on new batteries.If you are certain your stator is operating properly which can be done with a free to five dollar voltmeter you should fine.I run the battery down with a few ignition off runs if the stator or approached 13.2 amps it’s ok.Batteries can be had for 25 bucks.JMO so if your scoot is AC (or the headlight bulb), then when you rev up the engine and the light gets brighter, then the stator is working fine.... correct? Or is that for DC scooters? And i forget which scoot is AC and which DC... AC/DC, if you will. heh. Fire! seriously, i don't know anything... sigh.
|
|
|
Post by Senna1Rossi on Oct 21, 2018 12:05:18 GMT -5
I never had to use external charger in a year it charges in scooter. So yeah if you have some issues check your electrical system.
I use this pretty handy has 2 usb sockets to charge phone and shows voltage, make sure you hook it up to regulated voltage that goes to battery i burned one when unplugged rectifier and revved.
Cool, thanks. i'll give that a read. btw, yeah, scoots are big suck when your battery decides to die when you're oot and aboot. I had to push me GTS300 about two miles back home from a store.... and it was slight incline all the way back... nice leg workoot though.
|
|
|
Post by Senna1Rossi on Oct 21, 2018 12:10:28 GMT -5
oh btw!!!
are the numbers for battery reference anything to do with recharging compatibility with a scoot/bike?? I mean if it's a 12 volt motorcycle/scooter battery and the physical dimensions are same to fit into the housing, is it ok to use?? Or are the numbers related to scoot/bike recharging system? How does this work?
|
|
|
Post by snaker on Oct 21, 2018 13:28:07 GMT -5
Seems we are spending more on testers than on new batteries.If you are certain your stator is operating properly which can be done with a free to five dollar voltmeter you should fine.I run the battery down with a few ignition off runs if the stator or approached 13.2 amps it’s ok.Batteries can be had for 25 bucks.JMO so if your scoot is AC (or the headlight bulb), then when you rev up the engine and the light gets brighter, then the stator is working fine.... correct? Or is that for DC scooters? And i forget which scoot is AC and which DC... AC/DC, if you will. heh. Fire! seriously, i don't know anything... sigh.
AC headlights will change brightness more because they are powered directly off the magneto lighting coil whereas DC headlights are powered off the battery. Brightness changes are related to the amount of voltage present. A basic magneto generator has a characteristic of increasing the voltage with the increase of speed (rpm). Smaller - weaker magnetos have to spin faster to make the minimum voltage required to charge the battery . Bigger systems can charge good at idle when a weak system might be discharging the battery at idle. If the gen is making plenty of volts to always be above the charging threshold and the load isn't pulling the voltage below the threshold then you won't see the lights dim
|
|
|
Post by FrankenMech on Oct 22, 2018 21:44:28 GMT -5
I still have an electrolyte tester somewhere... My mind is slipping away. I still have scars on my fingers from battery acid due to pulling battery caps to test and fill cells. Battery acid turned the old red shop rags blue.
Properly operating 4-wire regulators limit the output of the stator windings to about 14 VDC to charge the battery and run the headlights on the 50cc gy6. Larger scoot engines may have improved regulator-rectifiers.
I wired in a DC power port off my battery. It is useful to plug in a USB charger for my phone and to monitor charging voltage with a HF tester: I can also plug in a battery charger or my fuel transfer pump.
|
|
|
Post by katt on Oct 23, 2018 11:32:01 GMT -5
oh btw!!! are the numbers for battery reference anything to do with recharging compatibility with a scoot/bike?? I mean if it's a 12 volt motorcycle/scooter battery and the physical dimensions are same to fit into the housing, is it ok to use?? Or are the numbers related to scoot/bike recharging system? How does this work? They all same AFAIK 13-14v charges any lead acid battery weather its some fancy wave form from expensive charger or constant current from DC power supply it will charge any lead acid battery so scooter vs auto no difference other than dimensions and how many CCA (for scooter there's no CCA rating).
Had scooter for almost year and never had to worry about battery just get any and forget about it, you stressing too much over it IMO.
|
|
|
Post by Senna1Rossi on Oct 23, 2018 11:38:30 GMT -5
^^ not stressing at all, mate. learning. learning is good for you.
|
|
|
Post by FrankenMech on Oct 23, 2018 11:50:53 GMT -5
Lead acid 12V batteries charge at 13.8-14.2 VDC.
|
|