Ryobi charger TB-2-S15P should give 21.8V only giving 7.4V what is the likely problem and how would you fix it?

I DON'T KNOW. COULD BE UNDER WARRANTY FOR FREE REPAIR OR REPLACEMENT. I HAVE RYOBI AND UPDATED ITEMS. THEY HAVE 3 CHARGERS 2 SMALLER RATED CHARGERS WOULD NOT GIVE ME
'FULL CHARGED' LIGHT. OLD BATTERIES WOULD NOT CHARGE ON OLDER CHARGER. FROM INTERNET ADVICE, I REPEATEDLY PLUG AND UNPLUG CHARGER BY HAVING PLUG LOOSE WHEN DOING THIS. SOMETIMES IT TAKES 4 TIMES TO CHANGE FROM DEFECTIVE TO CHARGE. SOMETIMES IT TAKES 20 TIMES TO SEE THE CHARGE LIGHT.

you can but it will take longer to charge and prob will be at 16 volts give or take 1 volt.

It's the 1/2 watt resistor on the fm board just fixed mine

Receipt will do nothing for you if it is out of warranty. Normal warranty is for three years.

Write to the company regarding your situation - see if your unit has a serial number that can give indication of age of unit. Perhaps they will replace the charger for you.

Make sure that the charger cord/connections are good and that unit is receiving power from wall.

I have not ides of your question, do you mean your tool can not work or your tool's charger can not work?

Please give the tool model number, battery part number and charger model number when asking the questions, otherwise, no one can help you.

Yo Mate, Have you tried contacting Ryobi online. GIve it a try, They have xlnt cust service.
...............dansky66

Hi,

Yes, they will get hot... that is normal...if they get too hot the charger will shut down and give and error flash...

heatman101

Fixya.com is a group of people who try to give people help with their questions about fixing things. The site you need for to get your parts is;
www.ryobitools.com I hope this helps.

sound to me like you have a bad battery, a lot of ryobi batterys don't last like they should i have had the same problem, but my battery was less than a year old and i took it back and they give me a new one.

No, just return it, for the money they should give you one that works. It is common to get a defective Ryobi 18v lithium battery. I've had 2 out of 7 purchased that wouldn't hold a charge. But when you get a good one they work awesome!