Revs on new genny

[pcatterall]

Just bought a small cheapo genny for emergency battery top up, small tools etc.
Thought I would try it at home. genny starts fine and is fairly quiet.
I tried it with a small 10 amp garage battery charger. When connected only a small charge was indicated ( about 2 amps against the 5 shown on mains connection)
There was no change in the chargers note when the load came on.
If I increased the genny revs by pushing the lever on the carb then the charger showed a very high charge.
I think I could force the genny to run faster but would this be the right thing to do?
I will test it soon on the boat batteries through the larger charger on the boat bu will appreciate a steer from the experts

 

[rotrax]

Just bought a small cheapo genny for emergency battery top up, small tools etc.
Thought I would try it at home. genny starts fine and is fairly quiet.
I tried it with a small 10 amp garage battery charger. When connected only a small charge was indicated ( about 2 amps against the 5 shown on mains connection)
There was no change in the chargers note when the load came on.
If I increased the genny revs by pushing the lever on the carb then the charger showed a very high charge.
I think I could force the genny to run faster but would this be the right thing to do?
I will test it soon on the boat batteries through the larger charger on the boat bu will appreciate a steer from the experts

You dont say if your new toy is a load sensitive one. My old (33 years) Kawasaki 800 just had a hi/lo twist knob. My new Kipor 2600 is load sensing and adjusts itself for optimum performance.

 

[LadyInBed]

Details of generator and Charger - make, model, wattage?
It could just be that the generator needs a bit of running in.

 

[pampas]

is it one of those 750 Watt jobbies. if it is and need tweeking, under the fuel tank at the pull cord end there is a screw for adjustment, runn one tankfull then change the fuel mix to about 50=1 ,saves the plug oiling up.

 

[pcatterall]

Load sensitive I assume!! There is a little lever from the genny side to the carb which I assume should move as the load increases to balance the load. It was by moving this lever that I could increase the revs and get a decent charge.
Perhaps I should try more load and see what happens.
Its a 850 watt ( read 650!) portable generator.

 

[padge]

A battery charger at 2Amps would only be pulling approx 30W the genny would hardly notice it ,hence no change in note.
Does it change with an electric drill ?

The lower charge rate may be because "You get what you pay for !"

With a global market the factory may have just used the same basic genny for the US - 110V 60Hz and rewired it and slowed the engine down to produce 220V 50Hz

Most equipment used with these gennies eg drills and old filament lamps are quite tolerant and work fine.

The UK uses 230V (used to be 240V) the lower voltage would show up as a lower current on a basic car battery charger. You boats charger is probablly much more tolerant and all will be fine

If you are still worried get someone with a dvm (and knows what they are doing !) to check the genny output.

If you just increase the revs you may increase the voltage but will change the frequency this could cause unknown damage to any sensitive electronics.