PM3's on sale at AdventureRV
$127 for a 75 amper, $100 for a 55, $87 for 45.
just pop the lid, turn the pot counterclockwise to your preferred setting, and have at 'er!
http://www.adventurerv.net/advanced_search_result.php?keywords=pm3-
PLEASE NOTE: the pm3 units being sold by adventurerv may very well be the newer version, with the 15 minute boost mode. What this means is, it will go into boost for 15 minutes... regardless of battery SOC. That means it will go into boost, even if the batteries are near full. The voltage will spike, and amps will start out high, then quickly drop.
If considering modifying one of the newer pm3's, consider this:
There is a difference of about 1v, between the factory preset boost and abs voltages. So, if you have the pot set to a new modified setting, at say 14.8 Vabs, and the batteries are more than say 80% soc, the voltage will quickly rise to 15.8v for 15 minutes, before dropping down to 14.8Vabs, and the current will start out at a rather high rate, as well. However, on a deeply discharged battery, the unit will still go into boost for 15 minutes, but the voltage will start out low, and rise to the Vabs setting as usual, and the current will likewise max out at its current limit, as usual.
ALSO; There was a thermistor issue on the earlier versions... no idea which ones... only that the pm4b-60 I bought spring of 2013 still had the issue, and blew up on its second run. Apparently a larger thermistor is being installed in the new bpcm-75, built and sold by bestconverter.com. As for all other versions and models, I cannot say.
just pop the lid, turn the pot counterclockwise to your preferred setting, and have at 'er!
http://www.adventurerv.net/advanced_search_result.php?keywords=pm3-
PLEASE NOTE: the pm3 units being sold by adventurerv may very well be the newer version, with the 15 minute boost mode. What this means is, it will go into boost for 15 minutes... regardless of battery SOC. That means it will go into boost, even if the batteries are near full. The voltage will spike, and amps will start out high, then quickly drop.
If considering modifying one of the newer pm3's, consider this:
There is a difference of about 1v, between the factory preset boost and abs voltages. So, if you have the pot set to a new modified setting, at say 14.8 Vabs, and the batteries are more than say 80% soc, the voltage will quickly rise to 15.8v for 15 minutes, before dropping down to 14.8Vabs, and the current will start out at a rather high rate, as well. However, on a deeply discharged battery, the unit will still go into boost for 15 minutes, but the voltage will start out low, and rise to the Vabs setting as usual, and the current will likewise max out at its current limit, as usual.
ALSO; There was a thermistor issue on the earlier versions... no idea which ones... only that the pm4b-60 I bought spring of 2013 still had the issue, and blew up on its second run. Apparently a larger thermistor is being installed in the new bpcm-75, built and sold by bestconverter.com. As for all other versions and models, I cannot say.
