New batteries does not seem to fully charge. tested the output of the charger with meter and it shows no voltage on the output of the charger, but the two lights flash quickly when plugged in to the wall and not the chair..

Question moved to a Ryobi category from MISC.

If they both show charged, they are unlikely to be incorrect. You can test the contacts of the batteries with a test meter, and you can also test the charger output.

If they don't work in a tool, the tool may have failed. Having said that, they do appear to have some history of this. Check out the videos.

https://www.google.com/search?q=Ryobi+18+volt+charger+shows+fully+charged

..

Test the battery charger output voltage.

If under warranty have it repaired/replaced. If not under warranty then some basic troubleshooting. Most likely a battery issue howerver;


To test the fencer output you can power the fencer from either a standard 6V lantern battery (6V fencer) or a standard 12V automobile battery (12V fencer). You need to rig wiring observing polarity.


To test battery, remove and check voltage with digital volt meter.
A fully charged 6V SLA battery should read 6.2V minimum and a 12V should read 12.4V minimum. If a 6V battery measures 4 volts or less then battery has likely failed. Likewise if a 12V battery measures 10 volts or less it has likely failed. Before replacing a suspect failed battery, connect the battery to any standard 6V/12V automobile charger and see if it will take a charge. After the charging period;

• If battery takes a charge, reinstall back in fencer and see if fencer output is hot. If fencer fails output, repair/replace fencer. Else verify the fencer is charging the battery. While battery is installed in fencer measure battery voltage with a digital volt meter. Typical minimum voltage is 13.5V for 12V and 6.7V for 6V. If fencer fails to meet minimum battery charging voltage, likely the fencer solar charging system has failed, repair/replace.

• If battery fails to charge, likely battery is end of life. However fencer could still not work. Test fencer with alternate power source (see previous tests). If fencer ok, replace battery.

The easiest and best way to test any battery is with a volt-meter.

http://www.northerntool.com/shop/tools/product_12496_12496

The link above is for a multi-meter. These are inexpensive and are an extremely useful tool to have. For about $15-20 you can buy a meter which will test AC/DV voltage, resistance/continuity and often diodes and/or transistors as well.

A fully-charged 12v battery will give a reading of 12v (or very close to 12v) on a volt-meter when it is fully-charged. 6v batteries should read 6v, 1.5v batteries should read 1.5v, etc, etc.

If the reading is lower than the power output of the battery, the battery is either not fully-charged or one or more cells may be damaged. If cells are damaged, you will never get the full 12v output from a 12v battery.

There are other ways to test batteries but they are less accurate. It's possible to use a battery charger, but you can only use this to determine whether a battery is fully-charged if the battery is known to be good. A fully-charged battery should draw 0 amps on a battery charger, but a damaged battery may also draw 0 amps so this is not a good test.

Basically, I'd suggest you get yourself a multi-meter. You be glad you did!

Hope this helps. Please let me know if you need further assistance.

Regards,
BElectric.

If the battery is not damaged or totally dead, you can attempt to charge it with any
24-Volt DC charger. The charging voltage rises to about 28 Volts when nothing is
connected to the charger. You must first connect (with jumper leads) the positive
charger output to the positive battery terminal. Use a test meter to determine the
polarity of the battery. Also test the charger output to determine the polarity. Be
sure to connect positive to positive and negative to negative. Do this before turning
on the power to the charger. If the battery is a "smart" battery; that is with built-in
electronic control circuit, the ordinary charger may not work. Normally, a battery
will accept a charge until it is nearly completely charged and then the battery
voltage will slowly "buck" the charging voltage. When the battery voltage and the
charging voltage are equal, no more charging current will flow. Amperes, that is
coulombs of current, charge the battery; when the battery is at (approximately) 24
volts and the charger is putting out 24 volts, NO current flows. The battery is then
fully charged.

hi Richard,

Does the scooter actually lose power after the 3 leds show ?

If it is losing power then a suggest to try some other batteries to confirm dodgy batteries, check the terminal connections etc.

If it does not lose power then the volt meter is at fault, if you can check the voltage before riding then after it shows only 3 leds , if there is a big drop, check the charger first to make sure the batteries are getting fully charged.

Regards
GeWiz.,