Batteries need to be measured under load. This requires connecting something like a large power resistor across the terminals along with the voltmeter tests leads. You have to be careful, because the resistor can get very hot. Another option is to connect a light bulb (2 - 12 volts in series) across the terminals with the meter. This is less likely to cause a problem and may provide enough load to test the battery. Lithium batteries can be repaired, but I do not believe this to be cost effective. Also you may consider the charger. Many of them have an internal fuse on the 18V line to the battery. When it opens, the charger appears to charge the battery forever, but the battery never gets charged.
Test the battery with a multi tester then if there is power your drill is the problem.
SOURCE: Batteries seems they do not charge. They show yellow &geen always
you need to open up you battery and check each on for voltage. take out the ones that have no voltage and resolder it with the good battery from your other non working one. you need to ruff up the top and bottom of the battery to solder a wire to it. make sure you dont touch the battery to the wrong polarity or you will get a spark or fire.
SOURCE: Very little juice in freshly charged batteries
have you tried the batterys in any other tool?
you would also need to check the voltage of the batterys they should be at least 18 volts (19 prefered)
then if the batterys do not show charged you would need to make sure the battery charger is putting out voltage.
After that contact your closest Ryobi service center we would check that for free to let you know what you need, I am sure you local place would do the same.
SOURCE: Battery charges but is dead
The battery isn't any good. The charger is just going through it's regular steps. (I know how it is. I just bought two Ryobi 18 volt batteries for my Ryobi cordless drill, reciprocating saw, flashlight,
trim circular saw, combo set. $60 for two batteries)
SOURCE: One of my Ryobi 18v battery packs (1400672) won't charge.
Use
AC / DC Power Adapter Replaces Ryobi One+ Batteryhttp://lcdpayless.com/ryobi_one_power_adapter.php
SOURCE: my new 18v lithium batteries run out of charge
This is not right. They should last much longer then that. I have one of the more expensive 18V lithium batteries (the one with the button on it that tells you if it needs charging or not) and I can use mine almost all day before it needs to be recharged. I do construction work and I use my Ryobi products almost all day. Either both batteries are bad (I don't believe that is the case) or the charger is not charging them all the way to a full charge. With this charger, you do need to make sure that you remove the batteries as soon as the green light comes on. It is not good on these batteries to stay charging after they are fully charged. You also should not leave the charger plugged in without any batteries charging.Please tell me more about the charger. When you plug in the charger, does the red light come on? When you plug in a battery, does the red light stay bright and the green light blink? Does the red light go off and the green light stay on bright when you remove it from the charger?
If the charger is not working correctly, then return it for a new one.
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