Health o meter 592KL will not shut its off after 4 minutes for down time. Any suggestions? Battery is good and so is charger.

Question edited for a lot more clarity. All questions need FULL
'make model (what is is)'.

There is no manual for that particualr model

https://www.google.com/search?q=napa+85-437+battery+charger+manual

Looking at the picture the meter is pretty standard on good chargers and shows the amps going into the battery. As the charger is smart, it reduces the charging amps, so on a 6 amp setting it will show 6 amps at first and slowly drop.

My own charger has a switch for 6 amp charge or 2 amp trickle charge. The meter is dual so one end is high 6 amp charge, and the other end is high 2 amp charge. When fully charged, the needle sits near Zero (0) in the centre like this

amps 6. 5. 4. 3. 2. 1. (0) .5, 1, 1.5, 2 amps

https://offerup.com/item/detail/45177217

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Sounds like old exhausted batteries to me.

hi if the charger goex green starightaway it could mean that there is a bad connection with the charger port or wiring that goes down to the controller, a voltage meter can confirm this..

1. charger
2. Charger wiring
3. battery or batteries

regards
Rob

Is there a particular battery charger for this vehicle? Can you use a car battery charger directly to the batteries?

Check you power settings. It is possible that it is set to shut down at 50% battery power.

If it is overheating, that too will cause a shutdown. What is happening at the time of shut down? Are the vents on the laptop being blocked in any way?

Your battery is definitely low. First clean the terminals on the battery and the inside of the terminal rings on the wires. If you have a slow charger put it on that overnight and see if it holds a charge. If it still keeps depleting or doesn't charge overnight then either your battery or your alternator are done....possibly both. So take the battery to have it load tested. Most places that sell them can test them. If the battery is done replace it then test the battery with a volt meter. If the old battery is still good put it back in the vehicle and test the voltage with a volt meter. With the engine off the voltage should read 12 volts (once its fully charged or if its new) with the engine running it should read around 14 volts. If it is way higher than that or it doesn't go up at all your alternator requires replacing. Alternators are fairly easy to replace but if you don't feel comfortable with that take it in to a mechanic.

Firstly I would suggest that you check whether the problem is really with the charger or the Dc9099 Battery itself. All rechargeable batteries deteriorate over time, especially if they are left fully discharged for a long time or are frequently left on charge for extended periods.
If you have a spare battery try charging that.
You can test the charger itself with a digital multimeter (electrical test meter). 1) plug in your battery charger to mains supply and switch on. 2) Set the scale on the test meter to 200 volts DC Voltage (V--) 3) Insert the test meter probe wires in the sockets on the meter marked "Com" (black) and "V/Ohm (red) 4) Touch the other ends of the probes onto the metal contacts on the charger. It doesn't matter which way round you do it
If the voltage reads in the region 20-25V (will be either + or - depending on which way round you place the probes on the contacts )the charger is probably working okay.
If you have a battery charger that is for US Voltage (110)volts you can buy a 240V-110V step down converter quite cheaply here. http://cpc.farnell.com/_/mw2p-045/45w-230-110v-ac-ac-adaptor/dp/PW00942?crosssellid=PW00942&crosssell=true&in_merch=true&

just inside the battery compartment, where the battery door latch goes, its about 3/4 on an inch down.

Your batteries have shorted out internally. If you have a 2/10 Amp car battery charger, you may be able to bring them back to life like so...

- Switch the charger to 2 Amps
- if your chair uses two 12V batteries, connect the car charger across only one of them. If it uses four 6V batteries, connect across two. Be sure to match red to plus and black to minus!
- plug in the charger and watch the Ammeter meter. If it "pegs" and won't come down, the battery is toast. If it goes down to aboult half, you are on your way.
- When the meter gets down to about 1/4, switch to 10 Amps. The meter will again go up.
- When the meter drops to about 1/4 again, the battery is charged,
- Repeat above for the next battery.

This process will take several hours per battery. You don't have to remove the batties from the chair. However, it would be a good idea to do so in case a battery fails.

Good Luck !

bad battery.. RMA that back to where you bought it from. probably wasnt a new battery they sold you. id charge it from completely dead to completely full one more time and if you dont get at least an hour out of the batt then i would return it..