Not sure on braille lite but on braille'n'speak, older models were soldered 
in, newer models were plugged in.
----- Original Message ----- 
From: "Lou Kolb" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, July 18, 2013 4:37 PM
Subject: Re: OT: Braille lite 40 question


> Thanks, Mike.  These units are from the 90's and the packs may have been
> soldered in back then.  I may forward this to Kurt for his reference.  Lou
> ----- Original Message ----- 
> From: "Mike Cozzolino" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, July 18, 2013 3:52 PM
> Subject: Re: OT: Braille lite 40 question
>
>
>> hello lou, i have changed the battery pack on several braille lites
>> and there is no problem changing them.  the pack is made up of 5
>> batteries in series and a second 5 in parallel for higher
>> current.  the battery pac is a plug in unit and is glued in the
>> case.  i had a company in colorado called car-go build me 20 packs
>> and they did a great job.  i sent them a pack that came out of a
>> braille lite and they duplicated it.  as far as the display is
>> concerned maybe he broke a wire or maybe he didn't get something
>> plugged in correct.  when opening the unit, you can just fold the
>> unit open and replace the battery pack and fold it shut and put the
>> screws back in and you are ready to go.  remember the batteries are
>> not charged up when you get them so charge the unit for say 10 hours
>> before you try to use it.  the display won't work unless the power is
>> there.  hope this helps lou, take care, c u 73 mike w6quv
>>
>>
>>
>> At 11:14 AM 7/18/2013, you wrote:
>>>I know this is off-topic, but at least it shouldn't generate flames and =
>>>swearing, and I do use these units in the shack.
>>>
>>>Anyone on list familiar with the circuitry of the Braille Lite 40?  I =
>>>have a friend who is offering to try to replace the battery packs in =
>>>several units for me.  I sent him my oldest unit first to experiment =
>>>with since I didn't really care what happened to that one.  He got the =
>>>batteries in but now when he turns it on, it just beeps and no Braille =
>>>comes up.  Has it lost the firmware?  He did find a lithium battery for =
>>>the memorie which seems to be good.  It measures 3 volts.  I've now sent 
>>>=
>>>him another unit along with a charger so he can keep it powered while he 
>>>=
>>>changes the cells.  Any observations apreciated.  73,  Lou