Hi Michael,
The PakTrakr is working really well on my setup. I have hooked it up so I can switch between my two separate 48 volt banks with one display unit. I would suggest getting the current sensor. The PakTrakr has already uncovered a bad battery which I was able to replace under warranty - not sure I would have known it was going bad otherwise.
Mark
Santa Cruz
--- In electricboats@yahoogroups.com, "Capt. Mike" <biankablog@...> wrote:
>
> Mike
>
> My Paktraker is working out very well. I have it in a convenient location in the cabin. You need to be careful hooking it up as the 1/4 amp fuse soldered into one of the leads is pretty fragile. I replaced my with a standard inline fuse holder. NOTE You will probably void the warrenty doing this. But, that has helped make the fuse changing or shuting it off much easier.
> On the other hand you could also go with a 4 pole switch and a digtal voltmeter too!
>
> Capt. Mike
> Sent from on board BIANKA
> http://biankablog.blogspot.com
>
> -----Original Message-----
> From: "mboucher99" <mboucher99@...>
> Sender: electricboats@yahoogroups.com
> Date: Fri, 16 Jul 2010 15:10:54
> To: <electricboats@yahoogroups.com>
> Reply-to: electricboats@...: Battery Balancers [was: [Electric Boats] Re: QUAD BATTERY CHARGERS FOR
> A 48 VOLT BANK]
>
> Hello,
> We need a monitoring system for our Mars 48v brushless / Sevcon PMAC system in a 27' sloop. Any advice? How has your PakTrakr worked out?
> Thanks,
> Michael in Maine
>
> --- In electricboats@yahoogroups.com, Steve Dolan <sdolan@> wrote:
> >
> > I'm installing the PakTrakr monitoring system this weekend and plan on installing the PowerCheq http://www.evsource.com/tls_powercheq.php balancing system soon after. From what I've read this is one of the few that has been around for a while and seems to work well. I've checked with the manufacturers of both systems and they work well together.
> >
> > Steve in Solomons MD
> > 41' Lagoon (Solomons) Cat
> >
> >________________________________
> > From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Myles Twete
> > Sent: Wednesday, May 19, 2010 11:55 AM
> > To: electricboats@yahoogroups.com
> > Subject: Battery Balancers [was: [Electric Boats] Re: QUAD BATTERY CHARGERS FOR A 48 VOLT BANK]
> >
> >
> >
> >
> > As an alternative to multi-chargers:
> >
> > Is anyone using battery balancers or bypass regulators for their series strings of flooded or AGM's?
> > One of the main problems in charging with single charger for our strings is that the individual batteries (and internal cells) inevitably get imbalanced---some batteries get fully charged first, voltage rises, charger shuts down and leaves one or more batteries less than fully charged. This perpetuates, cycle after cycle with none of the batteries ever fully charging. Bypass regulators are a common way to get some balance into this charging picture: Batteries which reach a set voltage begin passing current around them, allowing the slower charging batteries to "catch up", reaching the charged voltage closer and closer at the same time with subsequent charge cycles. Outlier batteries can be detected over time and replaced. One of the simplest bypass setups for lead acid batteries is commonly known as "Lee Hart's Shunt Type Battery Balancer"---it consists of little more than 2 power zener diodes, 2 ring terminals and a PR2 flashlight bulb. Build one per 12v battery and this setup will begin shunting at 13.6v and shunt up to 0.5amps at around 15v. Not much, but enough shunting to keep nominally good batteries in line.
> >
> > A link to Battery Balancers: http://www.cameronsoftware.com/ev/EV_BatteryManagementSystems.html
> >
> > -MT
> >
>
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