BFL13
Mar 24, 2014Explorer II
Adjustable Voltage PowerMax Charger--UPDATE
Some people still want one of these like I have, but they don't seem to be for sale anywhere in this model configuration.
It turns out that mine is a sort of experimental model and is not marketed----but you can get one! :)
The way it works is to contact Errin Tribble at PowerMax and place a "special order" with him, with your own choice of features and make your own deal for price etc.
http://powermaxconverters.com/contact.html
Here is a photo of mine, showing the modifications it has to the standard PM3-100 (now they make PM4s and PMBCs--no idea how that affects this-- ask Errin)

Mods on mine are:
- external knob to adjust the voltage pot inside.
- little voltmeter on top so you can see your adjustment
- lighted on/off switch
- carrying handle
- my own mod for wires/clamps (cut off booster cables) like a PMBC
I see the PMBC specs on PM's website show the variable voltage range goes to 16+, but on mine it maxes at 15.6, so you might need to clarify what voltage range you want. IMO ask for 13 low so you can float in hot weather and 16 high so you can equalize.
The on/off switch is not needed if you will be plugging in and unplugging.
If you will be mounting it instead of it being a portable, remember you need to see/get at the top and might not want the carrying handle.
Perhaps the knob and meter could be on the side instead of the top--I guess you can ask for anything you want! You would have to say which side. The heat sink might block off being able to put them on that side though. No idea :)
Also you need to specify the amps size you want. Not everyone needs a 100 amper :)
NOTE! Always connect the clamps to the battery before starting the unit up, and everything will be ok. NEVER do a hot restart like turning it off and then turning it right back on. It might blow the input thermistor. Wait an hour (I don't know how long you should wait, for it to cool, but ten minutes is too soon!)
Here is an old thread about this, that this post is meant to be an update for.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26838055/gotomsg/26838153/p/1.cfm#26838153
It turns out that mine is a sort of experimental model and is not marketed----but you can get one! :)
The way it works is to contact Errin Tribble at PowerMax and place a "special order" with him, with your own choice of features and make your own deal for price etc.
http://powermaxconverters.com/contact.html
Here is a photo of mine, showing the modifications it has to the standard PM3-100 (now they make PM4s and PMBCs--no idea how that affects this-- ask Errin)

Mods on mine are:
- external knob to adjust the voltage pot inside.
- little voltmeter on top so you can see your adjustment
- lighted on/off switch
- carrying handle
- my own mod for wires/clamps (cut off booster cables) like a PMBC
I see the PMBC specs on PM's website show the variable voltage range goes to 16+, but on mine it maxes at 15.6, so you might need to clarify what voltage range you want. IMO ask for 13 low so you can float in hot weather and 16 high so you can equalize.
The on/off switch is not needed if you will be plugging in and unplugging.
If you will be mounting it instead of it being a portable, remember you need to see/get at the top and might not want the carrying handle.
Perhaps the knob and meter could be on the side instead of the top--I guess you can ask for anything you want! You would have to say which side. The heat sink might block off being able to put them on that side though. No idea :)
Also you need to specify the amps size you want. Not everyone needs a 100 amper :)
NOTE! Always connect the clamps to the battery before starting the unit up, and everything will be ok. NEVER do a hot restart like turning it off and then turning it right back on. It might blow the input thermistor. Wait an hour (I don't know how long you should wait, for it to cool, but ten minutes is too soon!)
Here is an old thread about this, that this post is meant to be an update for.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26838055/gotomsg/26838153/p/1.cfm#26838153