Considering that my car’s battery is made up of I don’t know how many of those 
little cells, can you imagine if they all blew up at once.  

From: Mathew Howard 
Sent: Saturday, June 6, 2020 9:38 PM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] OT rechargable

Indeed. You're going to need a pretty big cinder block box to charge your car 
in...

On Sat, Jun 6, 2020 at 7:38 PM <[email protected]> wrote:

  Isn’t everything lithium these days?

  From: TJ Trout 
  Sent: Saturday, June 6, 2020 6:33 PM
  To: AnimalFarm Microwave Users Group 
  Subject: Re: [AFMUG] OT rechargable

  Never ever ever charge lithium batteries unattended. Build yourself a box out 
of cinder blocks for future charging. 

  On Sat, Jun 6, 2020, 5:20 PM <[email protected]> wrote:

    Couple of our guys came to check some thing at the shop today, the OSP crew 
ready room was full of smoke.
    Our horizontal directional drills use sondes in the drill head for tracking 
purposes.  We recharge the batts every time they come back to the shop.  

    The batts we use are smaller than normal sonde bats so they fit into an 
adapter, sabot type of thing.  

    The industry standard is double C cells, but the vibrations are such that 
normal C cells will give you intermittant service.  So most use a special 3 
volt battery that is probably just 2 c cells welded with heat shrink.

    Our new locators and sondes use a voltage a bit higher than most 3.3 volt 
lithium.  They like 3.6 volts I believe.  So the smaller batteries are adapted 
to fit the sonde, but the charger for them requires the adapter.  

    They really should make the charger such that the larger batts cannot be 
put in it.

    Just glad we didn’t have a fire.  It did blow the corner of a piece of 
shelving.  
    -- 
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