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RCBS Charge Master Battery Pak
- Thread starter shinny
- Start date
Sometime ago I read a post on how to make a portable battery pak for a RCBS Charge Master, however, I can't find it now.Boyd Allen
Active member
Jerry Hensler told me that he found the parts he needed at Radio Shack, a plug that is the same as the AC adapter, and a battery box that is designed to hold 8 D cells. I believe that we also discussed the fact that non-rechargeable batteries are preferable for this application, because they are better for holding their charge over a long period, and that one set of batteries should last an entire season, given the low drain of the unit. In the previous thread, after some discussion of the fact that 8 D cells yield 12 V, someone posted that he measured his RCBS AC adapter output and, no load, it was 12V, despite a nominal 9V rating. Others used motorcycle batteries, and there was some discussion of ways to drop the voltage of a 12V battery to nine. Based on Jerry's experience and the report of the transformer output, this may be unnecessary. (When the new forum software was put in place, it appears that the ability to search in some of the old ones was lost.)
O
Octopus
Guest
I found the following in my files. This is from the earlier post about the chargemaster.
30 ma idle and 250 ma when the motor is running. Inverters are not very power efficient. I use 8 D cells wired in series for a 12 V DC supply which will run my chargemaster for a year+ during matches. Batteries, holders and a plug are available at Radio Shack for less than $30.
That AC adapter puts out 13+ volts unloaded. I have been using 12+VDC for 2 years without any problem. The voltage drops when the motor is running. 8 AA batteries will run it for day, but they wear down quickly.
No adapter. Any 12 VDC source with 1 amp load capacity should work
I got my battery form here, http://www.powerstream.com/BP-23.htm
I gave the guy all the specs for the chargmaster and he said a 2.3 battery would last me 60 hours. You only need it for a whole weekend of shooting. If you need more than that you can charge it in your car, it also comes with a home charget also. Its a nice set up that dosnt take up alot of room. I use this combo at match all the time.
Then you get a radio shack power adaper 9V 1000mA from radio shack part number 273-1863 and your all set.
30 ma idle and 250 ma when the motor is running. Inverters are not very power efficient. I use 8 D cells wired in series for a 12 V DC supply which will run my chargemaster for a year+ during matches. Batteries, holders and a plug are available at Radio Shack for less than $30.
That AC adapter puts out 13+ volts unloaded. I have been using 12+VDC for 2 years without any problem. The voltage drops when the motor is running. 8 AA batteries will run it for day, but they wear down quickly.
No adapter. Any 12 VDC source with 1 amp load capacity should work
I got my battery form here, http://www.powerstream.com/BP-23.htm
I gave the guy all the specs for the chargmaster and he said a 2.3 battery would last me 60 hours. You only need it for a whole weekend of shooting. If you need more than that you can charge it in your car, it also comes with a home charget also. Its a nice set up that dosnt take up alot of room. I use this combo at match all the time.
Then you get a radio shack power adaper 9V 1000mA from radio shack part number 273-1863 and your all set.