I'm again posting this information here because of the fair number of direct Emails I get related to the Alexander Battery Optimizer requests for charger pocket/adapter info.
Alexander Battery Optimizer follow-up per a series of group posts made last December. I've accumulated a fair list of the Optimizer Pockets and their associated calibration resistor values. In Email conversations with a number of persons a formula for the resistor value was worked out as follows: "Take the battery voltage and times it by 71.5 and that will give you the value of the resistor." Kent M. has reported to have tested the analyzer from 6 to 12 volts and in between. (Kent M. is the source of the estimated reference resistor formula, thank you Kent). In addition to the resistor formula... I now have a zip file of pocket/adapter model numbers. The resistor values for those pockets does pretty much jive with the formula. If you would like a copy of the information, please feel free to direct email me. If your Email service doesn't allow zip file attachments... I can send you the same file with the suffix name changes from .zip to .skp and you simply rename it before extraction (un-zipping). that is all... cheers, skipp skipp025 at yahoo.com > "skipp025" <skipp...@...> wrote: > > : "del7734" <brhb@> wrote: > : Hi Skipp, any luck with a manual ? looking for BK pocket > : part number and any other info. might have to build a pocket > : but I dont know the resistor value for a 10vdc batt. > : Thanks Del > > Hi Del, > > Well... yes and no. There's quite a story behind the Alexander > Optimizer units. > > Trying to be brief... > > There is not much help on/for the original Optimizer units. When > NiMH and Lith-Ion battery packs hit the scene the early units > were not designed to properly handle/deal with the new battery > technology. > > So I "assume" from my fairly recent conversations with a guy > at Alexander they simply discontinued that line because because > of a number of over-charging train-wrecks regarding folks using > non Ni-Cad batteries in these early battery optimizer units. > > The replacement revised battery charger conditioners should clearly > be labeled as "New Generation". Otherwise you probably have the > NiCad only Optimizer unit, which are still quite usable for > what they are. > > If you'd like to charge only Ni-Cad batteries in an Optimizer > then it's hopefully a matter of only finding the proper pockets > for your specific battery. > > Based on my recent research... I've learned each specific pocket > has an included (attached) resistor, which sets the parameters > for that pockets' battery type. One could construct a custom > pocket if you were able to figure out a desired resistor value. > > Hence the rub... > > So I started making a list of the various charger pockets and > any pocket resistor values I was able to obtain/measure. It > would be nice if others were able to add data to the table based > on pockets they might be able to access and measure (the resistor > value) easy enough. > > You are welcome to a copy of the pocket - resistor - battery > model data sheet information I've made by simply emailing me > direct and requesting said animal. With enough decent information > and some smart guess work there should be no reason why you > can't construct a custom pocket for your needs. > > The early Alexander Battery Optimizers were expensive and fairly > useful for/with NiCad batteries (only). I wasn't able to find a > copy of the Optimizer Manual but someday maybe one will turn up. > In the mean time I'm able to use the one I have for/on some battery > types... maybe you can do the same using what information we > have available. > > cheers, > skipp > > skipp025 at yahoo.com > > > > > "skipp025" <skipp025@> wrote: > > > Hello groovy guys and gals, > > > I picked up an Alexander Batteries Optimizer (4 pocket model) > > > last weekend at the local ham flea market. I also see a number > > > of similar models on ebay cheap enough. > > > >
