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Ev Archive for November 2001
1274 messages, last added Fri Nov 30 23:10:58 2001

[Date Index][Thread Index]

RE: New battery pack advice needed



Hi Mark,

What is the peak current you presently draw from your 120V pack? (i.e.
what is your power requirement?)

How much energy does your average daily driving consume (Wh, or Ah,
whichever you track)? (i.e. what is your energy requirement?)

If your Pulsar is the one Jim van der Heyden used to own then I think
you've got a fairly small motor (ADC 6.7" at best), so adding weight is
probably not a good idea unless you really need the extra range.

Cheers,

Roger.

> -----Original Message-----
> From: owner-ev@listproc.sjsu.edu 
> [mailto:owner-ev@listproc.sjsu.edu] On Behalf Of Mark
> Sent: November 30, 2001 4:26 PM
> To: ev@listproc.sjsu.edu
> Subject: New battery pack advice needed
> 
> 
> Hello all.  My Pulsar is now in need of a new set of 
> batteries, as I knew it would be soon.  It was just sooner 
> than I had hoped (isn't it always?).

[snip]

> I'm looking at two possibilities--if you have others that 
> would fit the bill, let me know:
> 
> 1. 15 8v Trojan T-875's at 63 lbs each, $71 per batt (plus 
> tax and cables).  Perhaps Trojan T-890s instead but the $16 
> more per batt doesn't seem worth it for 15 more AH of capacity.
> 
> 2. 10 12v Trojan 31XHS's at 66 lbs each, $88 per batt (plus 
> tax and cables).
> 
> Option #1 would increase my overall weight by 342 lbs, and 
> would hopefully give me increased range, due to the additional lead.