hazeracing
12-13-2008, 04:34 PM
my charger says 8.405 at peak volt and i cant get it to go any higher.Which would be ok but....on a voltmeter it says 8.32.how can i make my charger go higher?
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View Full Version : help checkpoint charger hazeracing 12-13-2008, 04:34 PM my charger says 8.405 at peak volt and i cant get it to go any higher.Which would be ok but....on a voltmeter it says 8.32.how can i make my charger go higher? DHmav51 12-13-2008, 06:22 PM jose, i could be wrong, but i would think that the only way to get the charger to peak any higher would be to set it up for 3 cell lipo's. ~adam light hazeracing 12-13-2008, 06:56 PM tried it?no luck.where the heck r u????? hankster 12-13-2008, 08:20 PM While I don't have experence with the Checkpoint charger I would suspect it is measuring voltage in the chrager. Since you have voltage loses in the wiring and plugs, you see this voltage loss. Some chargers have voltage sensing leads to directly measure voltage at the battery. I don't believe you can change the cutoff voltage on the charger. Shortening the leads as short as possible should minimize the voltage loss. DHmav51 12-14-2008, 09:41 AM that's a possibility too hank, but i would think that if that was the problem, then it would read correct on the charger, but high on the voltmeter. it could also be that the charger is out of calibration. jose, i've been waiting on speed controls and a motor to come. tracy called yesterday and said i was racing next week reguardless of if i had one or not! ~adam light Alan Behler 12-14-2008, 01:26 PM last night my chargers said 8.403 all night and 8.40 on the volt meter! Porksalot4L 12-14-2008, 02:58 PM mine says 8.403 on the charger and 8.39 on the volt meter. i use 2 foot long charging leads so im not sure its the length that matters so much. hankster 12-14-2008, 04:25 PM that's a possibility too hank, but i would think that if that was the problem, then it would read correct on the charger, but high on the voltmeter. it could also be that the charger is out of calibration. jose, i've been waiting on speed controls and a motor to come. tracy called yesterday and said i was racing next week reguardless of if i had one or not! ~adam light Nope, if it reading the voltage at the charger and you have a voltage drop in the leads, then the battery will get less voltage then the charger is putting out. You could also check all of your solder joints on the plugs that are on your charger leads and battery. brian0525 12-14-2008, 06:13 PM make sure it isn't set to Lithium Ion instead Li-poly. HitmanIII 12-14-2008, 07:34 PM Are you using the GRC Volt meter or another and have you tested more than 1 volt meter? Hitman hazeracing 12-14-2008, 09:20 PM Are you using the GRC Volt meter or another and have you tested more than 1 volt meter? Hitman mine,grc,chucks,and leads on a t.35 all so 8.34,8.35 after charger cuts off at 8.404 HitmanIII 12-14-2008, 11:09 PM My charger cuts off a 8.39 every time.....May give them a call and send it back.................... cwinters 12-14-2008, 11:16 PM I noticed the same thing last night. The checkpoint charger read 8.405V and the track voltmeter read no higher than 8.25 all night. BTW, I was using the same track voltmeter as Alan. Chuck Bart Diaz 12-15-2008, 10:08 PM It could be the chargers mine read 8.40 on the charger and the voltmeter. oldtimer 12-16-2008, 04:11 PM I let al use my volt meter. Mine came out the same as the charger charger said 8.40 meter read 8.40 I love lipo bigt 12-31-2008, 06:44 PM my charger says 8.405 at peak volt and i cant get it to go any higher.Which would be ok but....on a voltmeter it says 8.32.how can i make my charger go higher? You can't make the charger go higher, you may have a bad cell in the pack or it may be out of balance if using a lipo. Are you using a balancer? Also how do you have the charger set up, I'm assuming that your pack is a 7.4volt 2cell by info the other reply you have, I would balance the pack if you haven't already. cwinters 01-04-2009, 04:22 AM my charger says 8.405 at peak volt and i cant get it to go any higher.Which would be ok but....on a voltmeter it says 8.32.how can i make my charger go higher? So, last night I charged one of my packs on my GFX so that it would be ready for practice today. When I got to the track, my checkpoint charger refused to charge the pack stating that the pack was above the peak voltage of 8.40 (the checkpoint was reporting 8.89V). Concerned, I checked the voltage using the track voltmeter as well as a fellow racers checkpoint charger and both read 8.39. I purchased a new checkpoint and it read 8.39. I think that this is a problem with specific chargers. I am going to send mine in for service/re-calibration. Chuck 69mkitmine 01-07-2009, 11:46 PM I can't speak of the final votage on Lipo's while using a Checkpoint, but I burned out a FET while cycling NiCD packs with it, and customer service was fast, and easy to deal with. There's a 5 year warranty on them. shrabber 03-12-2009, 08:04 PM I have the checkpoint charger why can I only discharge at 10 amps(lipo pack 2 cell)? It says you can do a 30amp discharge must be for the relic packs only nickbell1390 03-13-2009, 02:48 PM set it for 6 cell with a cut off of 1.0 volt per cell. then discharge your lipo pack at 30 amps. shrabber 03-13-2009, 04:58 PM Thanks shrabber 03-16-2009, 08:31 PM Nick I dont seem to find where to change to 6 cell do you mean 6cell nimh? nickbell1390 03-16-2009, 08:43 PM on the menu you can change the battery type form lipo to nimh by turning the know till it highlights then pressing the buttom and then turn the knob again to change the type. (bare with me i no longer have one of these chargers so i have to think) I believe you can set it here for the cell type and cell count. Once you do that scroll down to set the discharge amp the same way, then the cut off to 1.0 volts per cell. The 30amp discharge on this unit is a step discharge on for 2 seconds then off and so on. It takes awhile. nick latemodel100 03-16-2009, 09:15 PM Geeez this is opening my eyes to a whole new subject, might have to look at my Checkpoint now, LOl........ I never even look at voltage, but then again, i am not a true A Main guy I race for fun......... I just hope the Lipo is getting all it can get and go race, LOL......... Speaking of discharging, I have not been able to discharge on mine for some time, do you know if I can send it back in and how much it will cost to get that fixed........ shrabber 03-16-2009, 10:14 PM If I change it to nimh I can discharge at 30 Im not going to risk it I ALMOST CAUGHT A TRAILER ON FIRE ALREADY LOL TOM MAR 03-16-2009, 10:38 PM Firebug, I have the Ice version. Only 10 amp but programs the same way.( I think) shrabber 03-16-2009, 11:19 PM Thanks Tom by the way the blinds are "Perfecto" TOM MAR 03-16-2009, 11:43 PM Thanks ! Will set it up let me know when, James35 03-26-2009, 03:03 PM 30 amp discharge on the TeamCheckpoint is pretty slow, as it is pulsed discharge. It's about the same speed as doing 10amp linear. vBulletin® v3.8.7, Copyright ©2000-2012, vBulletin Solutions, Inc.
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