Re: [Paddlewise] Pump my ride...

From: <kayakwriter_at_aim.com>
Date: Tue, 17 Apr 2007 18:57:59 -0400
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 Hi Dana,
 
 Thanks for your interest and the comment. I guess it's not clear in my text or in the photos, but there are actually two 6 AA cell battery holders in the Micro Box, wired in series. Rechargable AAs are 1.2 volts rather than 1.5 volts like alkaline. So 12 x 1.2 volts = 14.4 volts.
  One other possibility I'm going to experiment with: I used the batteries fresh out of the packs, without recharging them, since they're supposed to self-discharge only very slowly. I'll charge them up fully and run things again.
 
 Cheers,
 
 Philip 
  
 -----Original Message-----
 From: dana.dickson_at_unisys.com
 
  Based on the photo of your battery pack, it looks like you are running a
12 volt pump with a less than eight volt power pack. That will greatly
reduce the pump capacity.  The pump will probably take normal 12 volt
lead acid battery voltage of 14.4 volts without burnout problems.
Increasing your power supply voltage will have more effect on the pump
flow rate than marginal increases in flow due to changes in flow
resistance in the hose and outlet fittings.
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Received on Wed Apr 18 2007 - 20:08:15 PDT

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