autotrickler V4 wall wart output?

[OMW57]

I have a V4 coming soon & was wondering about running it with a 12v battery pack that I already have, Would like to know what the power output rating is for the V4 wall wart to see if this would be feasable? or compatable?

 

[SteveOak]

I have a V4 coming soon & was wondering about running it with a 12v battery pack that I already have, Would like to know what the power output rating is for the V4 wall wart to see if this would be feasable? or compatable?

It is an excellent idea to power the scale from a battery.

It is feasible and eminently compatible, DC is DC. It is the best solution.

I am writing an article on that very thing.

I posted a few years ago about a battery pack for a Chargemaster, same concept.

 

[dttheliman]

@OMW57 - here you go , pay attention to the plug polarity , its caught more that a few .

 

[divingin]

If I remember correctly it was twice the current capacity of the original A&D wall wart. I suspect it's overkill as far as the rating goes. But yeah; any battery that supplies 12V, 2A should be fine.

 

[LVLAaron]

Ideally you want something that provides 12v regulated output. A 12v battery might supply anything from 14.6 to 10.5 volts.

 

[SteveOak]

I would have a hard time believing the scale has no internal power conversion nor regulation and relies on $2 wall wart for voltage stability.

I also doubt any measurement related devices inside the scale use 12 Volts or anything more than 5 Volts.

 

[OMW57]

The original A&D FX120i wall wart is rated at 12v-1amp, my battery is rated at 12v-3amp, polarity is reversed, but, I can get a reverse polarity 5.5mm barrel plug pigtail to take care of that, I was thinking the battery would eliminate any voltage fluctuations? just toying with the idea vs buying a UPS line conditioner & losing more space on my bench!

 

[OMW57]

OH buy the way< THANK YOU for posting the responses, I do appreciate it!

 

[RegionRat]

The reason Adam supplied the different wall wart, was driven by the power needed for the motor drives which exceeded the margin in the requirements of the scale electronics and that OEM wall wart.

I agree with Steve on the voltage not being that critical. The key difference between Volts versus Watts is amps.

Give the system a decent 12V battery with enough power (amps) and the voltage signals will keep enough margin against the motor drives and everything will be a cake walk.

 

[SteveOak]

@OMW57

Here is my post for a Plug and Play better for a Chargemaster. If you need more detail, let me know.

Plug and Play battery for a Chargemaster

If you size the battery correctly and charge the battery in between uses the drop should be minimal. I can help you with the calculations.

 

[OMW57]

@OMW57

Here is my post for a Plug and Play better for a Chargemaster. If you need more detail, let me know.

Plug and Play battery for a Chargemaster

If you size the battery correctly and charge the battery in between uses the drop should be minimal. I can help you with the calculations.

Yep, thats the one I have, been using it for the chargemaster & a matress inflating pump turn into a barrel cooler

 

[Larry Koch]

The original A&D FX120i wall wart is rated at 12v-1amp, my battery is rated at 12v-3amp, polarity is reversed, but, I can get a reverse polarity 5.5mm barrel plug pigtail to take care of that, I was thinking the battery would eliminate any voltage fluctuations? just toying with the idea vs buying a UPS line conditioner & losing more space on my bench!

How many hours of operation are you hoping to get between charges?

 

[OMW57]

How many hours of operation are you hoping to get between charges?

Hi Larry, I can load for an all day double match in about 2 hours, using a chargemaster, so probably not really needing anything longer than that?

 

[Larry Koch]

All I'm say is the battery you are using will not perform well on the V-4. Chargemaster yes.
If your using a v4 on battery its important to have enough battery to shoot the whole match.

 

[divingin]

I agree with Steve on the voltage not being that critical. The key difference between Volts versus Watts is amps.

I think most sensitive electronic devices take their rated input voltage (in this case 12V) and internally regulate it down to whatever it uses inside (I'd guess 5V since that's the standard for most logic chips.) If that's the case, then no, input voltage is not critical.

Noise on the input may still affect the internal supply voltage, though. Generally better to use as clean power as practical.

 

[dcali]

Make sure you get the plug polarity right. Some have the positive wire on the inside, some have the negative.

 

[Chiquita]

I modified my V4 (all of my electronic powder dispensers) DC side cord co I can connect to a spare marine deep cycle battery. I take the battery to the range when I do load development and when I am at home I can plug into the AC receptacle or use my battery.

Works awesome. Nothing complicated and very easy to do.

 

[gunsandgunsmithing]

Make sure you get the plug polarity right. Some have the positive wire on the inside, some have the negative.

Definitely do not get it wrong!

 

[SecondsCount]

I hope you guys are putting a fuse, rated for the wire size, at the battery end. Batteries store a huge amount of current and can create a fire hazard if the wire and circuit are not protected.

Most of the little wall transformers/supplies have internal protection.

 

[SteveOak]

I modified my V4 (all of my electronic powder dispensers) DC side cord co I can connect to a spare marine deep cycle battery. I take the battery to the range when I do load development and when I am at home I can plug into the AC receptacle or use my battery.

Works awesome. Nothing complicated and very easy to do.

Awesome!!!

Although I recommend you use the battery at home too.