Emag charging problems

[fhawkeye]

Recently bought a wall charger adapter - think I might have screwed something up because I first tried with a 12v - 500Ma AC to DC Adapter. Did not charge successfully and battery was not able to power the solenoid more than a few weak clicks.

So I upgraded to this 12v - 1A. https://www.radioshack.com/products/...ant=5717082501

Now when it was charging I was getting a orange or yellow light on the AGD charger which I never saw thought it was only red or green. Left it on all night after it went to full green. Still didn't get any power out of it. Wondering if I fried my charger or my battery using a faulty charger... It's a 1000Mah battery that really isn't that old, maybe 2 years max.

I don't currently have a way to test the voltage on the battery.

[Tunaman]

Recently bought a wall charger adapter - think I might have screwed something up because I first tried with a 12v - 500Ma AC to DC Adapter. Did not charge successfully and battery was not able to power the solenoid more than a few weak clicks.

So I upgraded to this 12v - 1A. https://www.radioshack.com/products/...ant=5717082501

Now when it was charging I was getting a orange or yellow light on the AGD charger which I never saw thought it was only red or green. Left it on all night after it went to full green. Still didn't get any power out of it. Wondering if I fried my charger or my battery using a faulty charger... It's a 1000Mah battery that really isn't that old, maybe 2 years max.

I don't currently have a way to test the voltage on the battery.

is it an AGD battery?

[fhawkeye]

is it an AGD battery?

Yes, here is my current set-up for reference.

IMG_20160313_111256734.jpg

[Tunaman]

Yes, here is my current set-up for reference.

[ATTACH=CONFIG]92345[/ATTACH]

You can get a volt meter real cheap at Harbor Freight or Radio Shack. You need 26+ volts coming out of that charger. You have to check that and the battery voltage first.

[fhawkeye]

You can get a volt meter real cheap at Harbor Freight or Radio Shack. You need 26+ volts coming out of that charger. You have to check that and the battery voltage first.

Done. And slightly interesting development, the charger is pumping out 27 volts and the battery itself is reading 20 which i understand to be good?

The software is xmod beta 1.7 and the board itself appears to be working correctly. However, there is just virtually no pull on the solenoid... If there is it's not enough to actuate the sear at all.

[Tunaman]

Done. And slightly interesting development, the charger is pumping out 27 volts and the battery itself is reading 20 which i understand to be good?

The software is xmod beta 1.7 and the board itself appears to be working correctly. However, there is just virtually no pull on the solenoid... If there is it's not enough to actuate the sear at all.

Check the board ground on the frame, and you can knock out the negative post on the frame and clean it and clean the hole and press it back in. Also, lengthen the plunger to 3.010. Let us know.

[fhawkeye]

Check the board ground on the frame, and you can knock out the negative post on the frame and clean it and clean the hole and press it back in. Also, lengthen the plunger to 3.010. Let us know.

Well I left the battery in for maybe an hour and now I can't get the LED screen to display anything... when I touch the positive end of the meter to the bolt where the battery connects to the frame and the negative end to the grounding screw on the bottom of the board i get something in the neighborhood of 2.5 volts. Battery is still showing 18.

Also I am unsure of how to lengthen the plunger or how to measure it but given that the display screen won't even turn on I doubt it's an issue with the positioning of the plunger.

[Tunaman]

Well I left the battery in for maybe an hour and now I can't get the LED screen to display anything... when I touch the positive end of the meter to the bolt where the battery connects to the frame and the negative end to the grounding screw on the bottom of the board i get something in the neighborhood of 2.5 volts. Battery is still showing 18.

Also I am unsure of how to lengthen the plunger or how to measure it but given that the display screen won't even turn on I doubt it's an issue with the positioning of the plunger.

Is the battery loose in its housing when you shake it?

[maniacmechanic]

Was this marker ever working ? if the magnet is too close to the hall effect switch won't it do weird startup stuff ? & like Tuna said ; Grounds

[fhawkeye]

Is the battery loose in its housing when you shake it?

No, battery is snug in the housing.

And the marker was working great until recently... when the display screen was still turning on earlier today I double checked the sensor and the trigger magnet was swinging well in and out of the sensor's field...

[Cyco-Dude]

battery voltage alone will not always tell you if the battery is good or not. you have to measure it's internal resistance to know for sure. you can find youtube videos on how to measure it. i'd offer more insight, but without a new battery i can't tell if my technique is correct or not.

[fhawkeye]

battery voltage alone will not always tell you if the battery is good or not. you have to measure it's internal resistance to know for sure. you can find youtube videos on how to measure it. i'd offer more insight, but without a new battery i can't tell if my technique is correct or not.

So if the resistance is bad we can definitely rule that the battery is the problem?

I also still think it's weird that the charger light stays orangy/yellow (blinking green occasionally) through the charge as it never used to do this. But other than that the marker internals are pristine with all the grounds cleaned and in place..

[Tunaman]

So if the resistance is bad we can definitely rule that the battery is the problem?

I also still think it's weird that the charger light stays orangy/yellow (blinking green occasionally) through the charge as it never used to do this. But other than that the marker internals are pristine with all the grounds cleaned and in place..

drain that battery and then charge it overnight again. Record the voltages before and after

[fhawkeye]

drain that battery and then charge it overnight again. Record the voltages before and after

I mounted it back on the gun to do this is the only way I know how (besides maybe zip-tie the trigger on full auto mode) - was still reading 18-19 volts and the display screen was flashing "LOW BATT" when I did and resets the start-up display whenever I pull the trigger.

So I'll just leave it on there for the rest of the afternoon to ensure a full drain and start charging it before I go to sleep.

Will keep you updated!

[maniacmechanic]

I use a 12 volt light bulb ( auto ) with a couple gator clips soldered on