What would be the problem with using 18650 style LiIon cells?

If we cannot afford to take care of Veterans, then we should stop making
them.
David C. Wilker Jr.
USAF (RET)

On Wed, Aug 9, 2017 at 1:51 PM, Lawrence Rhodes via EV <ev@lists.evdl.org>
wrote:

> As far as I can see the Zuumer is another orphan electric vehicle.  So if
> I want to run the vehicle..which is in almost perfect condition, I will
> have to rebuild the pack. Two 25.6v batteries for 51.2v system voltage. The
> cells are pouches.  Each when fully charged is 4vdc.  3.6 nominal.  I
> counted 7 pouches each 10 inches long in the pack.  LiMn2O4.  These are not
> very good cells but were used 10 years ago because they were relatively
> safe with only 500 cycles.  I'd just love to refill the battery cases with
> modern cells but what to get? It is so confusing.  It would be nice to be
> able to reuse the cases & chargers.  The cases slide into the top plate of
> the battery compartment.  Can't seem to find many 11 ah modules at 3.6vdc.
> Most at the 11ah level are pouches.  My battery doesn't seem to have BMS
> which is why I have fully charged cells and dead cells side by side.  I may
> be able to make one full battery between the two batteries but that won't
> do me much good.  Are there
>   rechargeable D cell size 11 ah batteries out there?  What is a good
> compromise?  It seems that I may with newer technology go down slightly in
> voltage from 3.6 to 3.2v and gain ah.  What to do?  Any advice welcome.
> Sincerely, Lawrence Rhodes
> Original specs.:
>
>
> ..25.6v 11ah 280wh part number ZCB-000150 29.4v charger It takes two 11 ah
> packs to run the Zummer each fully charged at around 28vdc.  51.2v nominal
> voltage for the Zuumer system to work. Fully charged 56vdc KP2403TL Charger
> https://www.amazon.co.uk/Enerpower-Pedelec-Silverfish-
> Zhenlong-battery/dp/B00KKRXHS0 This is almost identical to my packs.
> Just a different connector for the charger.  Same bottom electrical
> connector.  But no locks.  Mine have locks on the bottom next to the
> connector.
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