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It could be 1 of the 2 carbon brushes when the autostop protection is activated replace carbon brush cb441 194435-6 is a normal problem when the working hours are arrived ,but if your battery is empty it will stopping at once a protection for li-ion deep discharge protection.
Li ION is the best to have allways 1 of the batteries on the charger ,if working and do not full unload it change after a while before its stopped its better for the expensive li-ion batteries but if forget one batterie to use over time ( because you want to save him well-intentioned ) to use it frequently is better when its to deep discharged it will not working anymore the charger will not accept the battery anymore if its deep discharged , to rewake it preloading it only like this way a safe as possible against fire hazard not use chargers of cars or other tricks do a full working loaden battery from the charger and connect with that other battery connect both to each other with 2 1,5 kwdr wires the full battery with the not accepted not working deep discharged battery that was forget for a long time BEWARE to do only connect a polarisation as the + to the + and the - to the - the poles parrallel connect to each other not longer then 3 minutes after that remove the wires and now put immediately the not working battery on the charger and see that its accepted again, if its not working repeat it one time again , not for 3 times its a real battery problem for garantee or replacement do not work on li ion with battery chargers for a car or other full overpowered chargers without knowledge do not open or disconnect wires inside the battery then the Makita battery is immediatly dead . because of fire hazard protection li ion full battery on empty battery + to + - to - not more then 3 minutes if it still not working within 3 minutes repeat it once again be shure the wires are connected correct from battery to battery to preload if there was an battery problem of an empty battery or dead battery.
Lithium batteries are very different from "normal" batteries. The other contacts are for the charger to check the cells individually. If one cell is discharged or charged more than the others it could cause it to fail early " or explode " in some cases. So these are very important and if something goes wrong with even one of the contacts the charger will usally say the battery is bad. Most lithium cells are 3.7v (LiPo, Li-Ion) but the new type is 3.3v per cell (LiFe). That should tell you how many cells it is.
I live by hitachi, one of the good things about it is lowes will exchange them as long as you have a receipt and it's under 30 days. If not chargers are not very expensive, or you can send it back for repairs. I have 10 of those combo packs and never had a problem with a single one, for you to get 2 is a freak accident.
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If it is that old, the batteries are probably nimh (nickel metal hydride), not lithium, but either way, they will not be any good after sitting that long unused. Nimh have to be charged every couple of weeks due to self discharge, and lithium need to be charged every couple of months, but once a month is better. This is true if you use the drill or not, you have to take care of the batteries. They will have to be rebuilt or replaced. Oh, also make sure you are using the correct charger because if you use the wrong one, the batteries could catch fire and damage your home/garage/shop. Never leave a charger in use unattended. (Do not try to charge batteries and go to bed, very dangerous!) Good luck
Digital cameras are very Voltage Sensitive. Using Nicad or NiMh
batteries will not only , "Not" solve the problems above but will actually aggravate the above problems for one reason.
NiCad or NiMh batteries only produce 1.2 volts fully charged and will
only give you 2.4 volts when used in pairs with this camera. This falls
below the cameras desired 2.8 - 3.0 voltage requirement and will only
result in about 30-40 pictures at most.
This camera requires a
constant 2.8 - 3.2 volts to run properly. Kodak won't tell you this
!!The camera was designed with Oxy Akaline batteries in mind.New
alkalines will produce 3.2 to 3.4 volts in pairs but only for a short
period of time.The issue with the Oxy Alkaline batteries is that they
simply will not last very long in this camera due to its power
But there is a really great solution to the
problem . You can purchase a CRV3 rechargeable Li-ion battery that fits
right into this camera. You will get a realistic 180-250 photos per
charge.The Li-Ion battery maintains a constant 3.0 volts for a very
long period of time and will allow the camera to function the way
Kodak originally intended it to and can be recharged. You will find
rechargable CRV3 battery kits on ebay or other online battery stores at
a very reasonable cost.
You can also use a Lithium Non rechargeable CRV3 battery that will give approx 250-300 photos per battery but you may find non rechargeable Lithium batteries cost prohibitive.
I use the rechargeable Li-ION Battery exclusively in this camera and it functions perfectly since I switched. I have a pair of CRV3 Li-Ion batteries so I always have a fully charge CRV3 ready to go.
For reference I was only able to get about 30 pictures with the high capacity 2800 Mah Rechargeable NiMH Batteries I used prior to using the LI-ION Battery. I get on average about 175 pictures per full charge from the LI-ION Battery.