Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,
Larry
Sahara05 said
08:11 PM Apr 15, 2016
Yes have done so for years.
Peter_n_Margaret said
10:25 AM Apr 16, 2016
No. The smoke will come out.
Cheers,
Peter
patrol03 said
01:31 PM Apr 16, 2016
Yes Peter ,I can smell smoke too.
Sahara05 said
04:04 PM Apr 16, 2016
Have you tried it....No... I have and are still doing it,Two 12v chargers of same or similar specs works well
Peter_n_Margaret said
04:42 PM Apr 16, 2016
Sahara05 wrote:
Have you tried it....No... I have and are still doing it,Two 12v chargers of same or similar specs works well
In series?
Cheers,
Peter
Sahara05 said
05:11 PM Apr 16, 2016
Yes in series producing 24v.
03_Troopy said
05:18 AM Apr 17, 2016
Maybe an old non smart charger will...
dorian said
06:05 AM Apr 17, 2016
Smart chargers have several stages. Some are constant current, others are constant voltage. At some point in the cycle the charger also tests the resistance of the battery. I can't see how you could use such a device as a single constant voltage source let alone two in series. Even some dumb chargers may not work if they need to sense the presence of a battery.
oldtrack123 said
02:39 PM Apr 17, 2016
Hi I would not try to do it with modern multi stage chargers they could tie themselves in knots as Dorian has pointed out.
But it could be done / has been done with very basic single stage chargers[ high impedance transformer +rectifier ,constant current]
I have series connected 2 x6V for 12V.
Aus-Kiwi said
08:04 PM Apr 17, 2016
One charger on each battery ? Then connect load side to what is required .
Wombat 280 said
09:43 AM Apr 18, 2016
Why not buy a suitable charger not all that expensive
Peter_n_Margaret said
12:02 PM Apr 18, 2016
Sahara05 wrote:
Yes in series producing 24v.
Maybe you could tell us exactly what these chargers are please?
Cheers,
Peter
sandsmere said
06:16 AM Apr 19, 2016
deverall11 wrote:
Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,
Larry
Larry, go to a reputable, qualified auto electrician.
Too many "would be if they could be's on here".
03_Troopy said
07:10 AM Apr 19, 2016
sandsmere wrote:
deverall11 wrote:
Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,
Larry
Larry, go to a reputable, qualified auto electrician.
Too many "would be if they could be's on here".
Actually his question has been answered by a couple of people already. Unfortunately lack of information about what kind of chargers they are, makes it impossible to give a definitive answer.
Totally dismissing everything you read on here only displays your lack of knowledge of electronics. And in that case, you are better off going to a "reputable, qualified auto electrician"
dorian said
08:25 AM Apr 19, 2016
Peter_n_Margaret wrote:
Sahara05 wrote:
Yes in series producing 24v.
Maybe you could tell us exactly what these chargers are please?
I'm still waiting, too.
Sahara05 said
12:58 PM Apr 19, 2016
Sorry been out of action.
in reply to question run of the mill chargers from Repco etc
Peter_n_Margaret said
04:10 PM Apr 19, 2016
Sahara05 wrote:
Sorry been out of action.
in reply to question run of the mill chargers from Repco etc
That is not much help. Could we have a model number please?
Cheers,
Peter
Sahara05 said
04:47 PM Apr 19, 2016
Projecta automatic 6/12v 2700Ma charger
03_Troopy said
06:22 PM Apr 19, 2016
Better off buying a 24V charger than using 2 X 2.7A chargers in series. It would take you a donkey's age to charge anything with them, even if they did work in series.
Aus-Kiwi said
08:21 PM Apr 19, 2016
I have the 6 amp model as a trikle charge for RV batteries .. 2 x 12v ..
Peter_n_Margaret said
12:04 AM Apr 20, 2016
Sahara05 wrote:
Projecta automatic 6/12v 2700Ma charger
Is that a 3 stage charger, or just a power supply?
Cheers,
Peter
oldtrack123 said
11:02 AM Apr 20, 2016
Of course the best way to use them, would be to simply connect each to a battery
ie #1 to battery "a'
#2 to battery "b'
No need to separate batteries
Each would then charge the battery it is connected to with no problems, except for time to charge IF a large battery or heavily discharged
oldtrack123 said
11:08 AM Apr 20, 2016
deverall11 wrote:
Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,Larry
Hi Larry the real question is do you want to use them in that configuration to charge batteries or as power sources
The OC & load voltage will not be the nominated battery voltages.
dorian said
11:22 AM Apr 20, 2016
oldtrack123 wrote:
deverall11 wrote:
Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,Larry
Hi Larry the real question is do you want to use them in that configuration to charge batteries or as power sources
The OC & load voltage will not be the nominated battery voltages.
Exactly. I understood that the reqirement was for a voltage source rather than a charger.
The charger alluded to by Sahara05 appears to be model AC400:
The AC400 has a minimum start voltage of 3V. This means it needs to see a battery before it can output anything, so it cannot be used as a voltage source.
deverall11 said
05:02 PM Apr 20, 2016
dorian wrote:
Hi Larry the real question is do you want to use them in that configuration to charge batteries or as power sources
The OC & load voltage will not be the nominated battery voltages.
I was intending on using this as a power source to power a drill.
Larry
Aus-Kiwi said
10:23 PM Apr 20, 2016
If you read the instructions . Being it has variable voltage to battery charge .. They cannot be used for direct use .
dorian said
07:01 AM Apr 21, 2016
The Projecta AC800 has a dual function switch. One position selects charge mode, the other selects "engine start" mode (5 mins on, 20 mins off). The latter might be OK to power a drill for short periods.
Phil C said
07:27 PM Apr 21, 2016
Gday from the beaten track at Penong on our way back from Perth...
I will put my two peneth in here.. Any electrical item that isnt used for its intended purpose may attract problems. I would suggest for you to get the appropriate device to charge your battery and an appropriate device to run the drill.. Thats just my opinion, not a red rag to a bull..
Cheers
PS. we have had a great trip... next 2 months up the guts of Vic, NSW and QLD to Longreach and back... woo hoo
Does anybody know if you can connect two battery chargers in series in order to get 18v or 24v.
Cheers,
Larry
Yes have done so for years.
Cheers,
Peter
Have you tried it....No... I have and are still doing it,Two 12v chargers of same or similar specs works well
In series?
Cheers,
Peter
Yes in series producing 24v.
But it could be done / has been done with very basic single stage chargers[ high impedance transformer +rectifier ,constant current]
I have series connected 2 x6V for 12V.
Maybe you could tell us exactly what these chargers are please?
Cheers,
Peter
Larry, go to a reputable, qualified auto electrician.
Too many "would be if they could be's on here".
Actually his question has been answered by a couple of people already. Unfortunately lack of information about what kind of chargers they are, makes it impossible to give a definitive answer.
Totally dismissing everything you read on here only displays your lack of knowledge of electronics. And in that case, you are better off going to a "reputable, qualified auto electrician"
I'm still waiting, too.
Sorry been out of action.
in reply to question run of the mill chargers from Repco etc
That is not much help. Could we have a model number please?
Cheers,
Peter
Projecta automatic 6/12v 2700Ma charger
Is that a 3 stage charger, or just a power supply?
Cheers,
Peter
Of course the best way to use them, would be to simply connect each to a battery
ie #1 to battery "a'
#2 to battery "b'
No need to separate batteries
Each would then charge the battery it is connected to with no problems, except for time to charge IF a large battery or heavily discharged
Hi Larry the real question is do you want to use them in that configuration to charge batteries or as power sources
The OC & load voltage will not be the nominated battery voltages.
Exactly. I understood that the reqirement was for a voltage source rather than a charger.
The charger alluded to by Sahara05 appears to be model AC400:
http://www.projecta.com.au/site/DefaultSite/filesystem/documents/Battery%20Chargers/Automatic_Chargers_instructions.pdf
The AC400 has a minimum start voltage of 3V. This means it needs to see a battery before it can output anything, so it cannot be used as a voltage source.
I will put my two peneth in here.. Any electrical item that isnt used for its intended purpose may attract problems. I would suggest for you to get the appropriate device to charge your battery and an appropriate device to run the drill.. Thats just my opinion, not a red rag to a bull..
Cheers
PS. we have had a great trip... next 2 months up the guts of Vic, NSW and QLD to Longreach and back... woo hoo