power wise charger and small generator

j.p.f. · 01-16-2016, 08:55 PM

what would happen if the power wise 21 amp charger was plugged into a small 900 watt generator?
would it damage the charger?
would it choke down the generator.
or would it work but take a long time to charge?
I ask because I have a harbour freight 900watt generator and wondered about being able to use it in a pinch, without damage!

mccarsones · 01-16-2016, 11:21 PM

Your generator is Rated for 7.5 amps, it will peak a little higher but is not properly rated for charger. Would probably not be good for charger or generator. Maybe some one with more knowledge of the charger's load and internal component's might be able to help.

kgsc · 01-17-2016, 04:58 AM

Chances are that 900 watt generator is not quite that much and I would guess that is a peak wattage. Running watts is probably close to 600 which would be close. I don't think it would be good for either.

radioman · 01-17-2016, 09:07 AM

If it were mine I would hook it up and try it out with a short running test. Better to know it wont work now than depend on it later. Probably wouldn't hurt the charger in any event. Ratings are close enough to possibly work.

Volt_Ampere · 01-17-2016, 09:32 AM

At best this generator would be marginal running a charger. You need excess capacity in a generator for it to work properly. You can try it but it may not handle the transient when the charger kicks on.

Yamahaman · 01-17-2016, 10:56 AM

HF has it rated at 900W but I have heard it's not even close to that.Several people had these little two cycle gennys but they were too noisey to run in campgrounds.One of them said the best his would put out was 6.5 amps and it wasn't regulated power or sine wave power or something.

cgtech · 01-17-2016, 01:58 PM

900w = 7.5a @ 120v. That is not nearly enough for the full load of the charger when it first kicks on. It should trip the breaker on the generator as soon as the charger kicks on.

j.p.f. · 01-17-2016, 09:16 PM

well, I was pretty sure it wouldn’t work but I didn't want to damage anything testing.
thanks guys.

01-16-2016, 08:55 PM	#1
j.p.f. Not Yet Wild Join Date: Mar 2013 Posts: 19	power wise charger and small generator what would happen if the power wise 21 amp charger was plugged into a small 900 watt generator? would it damage the charger? would it choke down the generator. or would it work but take a long time to charge? I ask because I have a harbour freight 900watt generator and wondered about being able to use it in a pinch, without damage!
j.p.f. Not Yet Wild Join Date: Mar 2013 Posts: 19

01-16-2016, 11:21 PM	#2
mccarsones Not Yet Wild Join Date: Jan 2016 Posts: 37	Re: power wise charger and small generator Your generator is Rated for 7.5 amps, it will peak a little higher but is not properly rated for charger. Would probably not be good for charger or generator. Maybe some one with more knowledge of the charger's load and internal component's might be able to help.
mccarsones Not Yet Wild Join Date: Jan 2016 Posts: 37

01-17-2016, 04:58 AM	#3
kgsc Gone Wild Join Date: Dec 2009 Location: Aiken, SC Posts: 13,177	Re: power wise charger and small generator Chances are that 900 watt generator is not quite that much and I would guess that is a peak wattage. Running watts is probably close to 600 which would be close. I don't think it would be good for either.

01-17-2016, 09:07 AM	#4
radioman Gone Wild Join Date: Jan 2014 Location: South Georgia Posts: 1,120	Re: power wise charger and small generator If it were mine I would hook it up and try it out with a short running test. Better to know it wont work now than depend on it later. Probably wouldn't hurt the charger in any event. Ratings are close enough to possibly work.

01-17-2016, 09:32 AM	#5
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,186	Re: power wise charger and small generator At best this generator would be marginal running a charger. You need excess capacity in a generator for it to work properly. You can try it but it may not handle the transient when the charger kicks on.

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01-17-2016, 10:56 AM	#6
Yamahaman Gone Wild Join Date: Jul 2015 Location: Texas Posts: 223	Re: power wise charger and small generator HF has it rated at 900W but I have heard it's not even close to that.Several people had these little two cycle gennys but they were too noisey to run in campgrounds.One of them said the best his would put out was 6.5 amps and it wasn't regulated power or sine wave power or something.

01-17-2016, 01:58 PM	#7
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: power wise charger and small generator 900w = 7.5a @ 120v. That is not nearly enough for the full load of the charger when it first kicks on. It should trip the breaker on the generator as soon as the charger kicks on.

01-17-2016, 09:16 PM	#8
j.p.f. Not Yet Wild Join Date: Mar 2013 Posts: 19	Re: power wise charger and small generator well, I was pretty sure it wouldn’t work but I didn't want to damage anything testing. thanks guys.
j.p.f. Not Yet Wild Join Date: Mar 2013 Posts: 19

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