Battery pack or charger

I'm far from a Roomba expert and only clicked on your question out of curiosity given my background and as there was a similar question earlier Id passed.

A little research... Roomba NiMh battery pack is 14.4 v full charge. NiMh charging is a bit complicated, suffice to say it will eventually go well over 16V.

I would expect the charging station to have an initial charge voltage in excess of 12.5V. What I don't know is if its always on or waits to see if a load (roomba) attaches and then turns on its output.

So if you measured the power, contacts on the charger with a voltmeter and you get better than 12V likely its good, but really need to know what the voltage is when Roomba (with nominal battery pack) is docked.

Its likely the battery pack in the Roomba has a bad cell and will need replaced. You could measure the battery voltage but likely its low from not taking a charge. If its 14+ then the charger is working and the Roomba is misreporting.

(what does its mean)? tell here IT it located in your hand or in the PC, and we can answer 10x more easy./
the laptop chargers its own battery with ;
1: a good battery, LED mean near nothing batteries this old are no good.
2: next is power pack, the PC will run on the AC power pack with the battery out, does? it will for ever, or until city power dies.
3: there is no battery chargers sold (separate )to charge that odd shaped non standard battery. sorry.

why would any manufacturer refer you to a competitors part when they have their own to sell---get real
now batteries can be replaced in a battery pack and there are plenty of battery shops that can do that for you
What's more most will have a generic charger that will do the job if not the OEM charger or can test your charger
remember this --the price of a battery drill is directly related to the quality of the batteries in the pack
a quality brand that is cheap indicates poor quality batteries or if it is a quality brand and has several spare packs again the batteries are of poor quality
so the fix is to visit a battery shop with your pack and charger and ask questions of them

the trimmers switch may be faulty.

CHARGING THE BATTERY PACK
Battery packs for this tool are shipped in a low charge condition
to prevent possible problems. Therefore, you should
charge them until the green LED on the front of the charger
comes on.
NOTE: Batteries will not reach full charge the first time they
are charged. Allow several cycles (operation followed by
recharging) for them to become fully charged.
CHARGING A COOL BATTERY PACK
See Figure 3.
If battery pack is within normal temperature range, the red
LED on charger will come on.
NOTE: If the charger does not charge the battery pack
under normal circumstances, return both the battery pack and
charger to your nearest Ryobi Authorized Service Center for
electrical check.
n Charge the battery pack only with the charger provided.
n Make sure the power supply is normal household
voltage, 120 volts, 60 Hz, AC only.
n Connect the charger to the power supply.
n Place the battery pack in the charger aligning raised rib
on the battery pack with the groove in the charger.
n Press down on the battery pack to be sure contacts on
the battery pack engage properly with contacts in the
charger.
n Normally the red LED on charger will come on. This
indicates the charger is in fast charging mode.
n Red LED should remain on for approximately 1 hour
then the green LED will come on. Green LED on
indicates battery pack is fully charged and charger is
in maintenance charge mode.
NOTE: The green LED will remain on until the
battery pack is removed from the charger or charger is
disconnected from the power supply.
n If both yellow and green LEDs come on, this indicates
a deeply discharged or defective battery pack.
Allow the battery pack to remain in the charger for 15
to 30 minutes. When the battery pack reaches normal
voltage range, the red LED should come on. If the
red LED does not come on after 30 minutes, this may
indicate a defective battery pack and should be
replaced.
n After normal usage, a minimum of 1 hour of charging time
is required to fully recharge battery pack.
n The battery pack will become slightly warm to the
touch while charging. This is normal and does not
indicate a problem.
n Do not place the charger and battery pack in an area of
extreme heat or cold. They will work best at normal room
temperature.
NOTE: The charger and battery pack should be placed
in a location where the temperature is more than 50°F
but less than 100°F.
n When batteries become fully charged, unplug the
charger from power supply and remove the battery
pack.
Source(s):http://toolboyworld.com/eBay/Ryobi_P110/...

You need a volt meter, They are cheap and it will come in handy down the road. The volt meter will tell you if your charger is the problem or the battery has went to battery heaven.

No, the P110, 18V NiCad battery charger, will not charge a 18V lithium ion battery. You need one of the dual-chemistry chargers. If you have the Ryobi ONE+ batteries, you can get the P117 charger ($30) or a charger with an extra battery (P126) from a store like Home Depot. A 6 battery charger and a 12V in-car charger are also available.

I wish that I had better news for you.

Cindy Wells
(who has the Ryobi 12V drill and charger, a few of the 4V tools, and a number of the ONE+ 18V devices and chargers. The single chemistry battery charger is not used much any more.)

Nice books, have many. 8540s./. better.
i can not decode this post.
sorry
does it run with no battery and the correct pack
mine has 10 options new the i7 and the fast video card suck huge power and mine needs a 100watt pack, the 65w on mine is HOPELESS. see?
run the correct matching pack,
step 2 a new battery, i keep 2 good ones all the time
on Vacation, id not be wanting to find batteries 3000 south of here, ever. (south of the boarder)

test with no battery
then with correct power pack (the charger is a chip inside the pc and in this 19vdc pack its only a power pack pure DC.
then try a new battery ,

if you read your service manual at HP.com
it tells you all packs used and why, and the match.
sure does.
and varies by OPTIONS DAY1. in all case
unless upgraded like mine, is, and sucks max amps mine does.

My kodak camera requires taking out the battery pack and charging outside of the camera. My batteries have a generic charger I got off of amazon that has a red and green light on it that tells you whent he batteries are fully charged.

If the charger is blown, that might explain why they are not charging.

Are you trying to use AA batteries instead of the recommended battery pack? I would use the recommended battery packs available through amazon.com.

hello there use your USB cable for charging your camera battery. No need to take out the battery from camera. Some Tips.

You may choose our Smart Charger (0.5A,UL listed) for 3.7 V Li-Ion battery Pack to recharge this battery pack. Must charge the battery pack with correct polarity. The estimated charging time is 2.76 hours .

You may connect two 3.6v 920 mah pack in either series or parallel connection for making a higher voltage and higher capacity pack.

Hope you have those staff with your camera. use that for charging. Follow the link.
http://www.batteryspace.com/smartcharger05afor37vli-ionpolymerrechargeablebatterypack--ceullisted.aspx

Thanks, i am waiting for your feed back & if you satisfied then thumps me please.

As you know, solid red on your charger means that the battery is fully charged and the BLINKING red light means the battery is charging. Unless the light is blinking irradically everything is working the way it is supposed to. If the light is blinking irradically, the battery may just be too hot or too cold to charge ( like when you are driving many lags and your battery dies) and in this case simply wait 15 minutes to charge. If you get a fast blinking light still, the problem probably is with the battery.