Electronic scale power at the range?

[Josh11]

I am going to try to do load development again too see if I had missed my node with my 6brx. My question is if I take a Gempro 250 to the range, would a battery backup (aka UPS) have enough juice to keep it going. Or would the scale end up drifting on me? I wouldn't load a ton at a time. Just about ten ever load I try. I want to shoot one five shoot group at 100 and one group at 600. Or is there an easier way to load at the range using a electronic scale? When I first started on this site, I remember seeing a guy had these little glass containers that he preloaded at home and just seated them at the range but now I cant find it.

 

[oneflyer]

Josh- Those vials are for blood samples and can be purchased from a medical supply company, usually 100 at a time. I have a gempro 50 that I use at the range. The battery life is quite good and works well for me.

 

[Turbulent Turtle]

You might also look at using an inverter. My SUV has a power socket in the back (along with several others inside) and that's where I plug in an inverter. These scales do not require a lot of power.

 

[Nomad47]

An hour of actual weighing should be plenty of time at the range. My cheap MTM scale (getting replaced soon, likely with a Gempro 250), runs a long, long time on its two AAA batteries. I would expect the Gempro to last at least just as long on its four AAA batteries.

 

[amlevin]

Even a small UPS should power up a scale for a long time. These scales don't use much power at all when compared to the computer the UPS is designed to keep powered while shutting down. Just make sure you leave home with it fully charged.
Might also consider just making a battery pack that uses D-Cells and don't bother with the adapter. All the pieces are at Radio shack. Just divide the output voltage shown on the adapter by 1.5 to determine how many batteries you'll need. Lots of shooters are doing this with their RCBS Chargemasters for range use. A battery pack will last several shooting days, maybe even months. Nice thing about this approach is that you can just carry spare batteries and don't have to find a plug in to recharge anything.

 

[bricktop]

You can probably find a 12V cigarette adapter to whatever voltage and plug type your scale requires, which should be much cleaner of a power source than an inverter (at least with the engine not running).

 

[Josh11]

I havent got a gempro 250 yet but I did just see that it takes 3 AAA batteries.

 

[amlevin]

You can probably find a 12V cigarette adapter to whatever voltage and plug type your scale requires, which should be much cleaner of a power source than an inverter (at least with the engine not running).

Sounds good if loading and shooting right at the vehicle. How long an "extension cord" would one need to make it from the parking lot to the "firing line" 8)