Yes $600 is a bit steep. My scooter runs on 4 x ~16AHr VRLA batteries. Down
here in Chch they seem to cost about $95 each. Since I now have to replace
at least 2 of them I looked around a bit and found a place in Auckland
selling them for $56 each. Shipping is ~$9 for 2 so I'm eagerly awaiting
their arrival.

I did look briefly at the Li battery alternative but it'd be far too costly=
..

I actually work with equipment using Li-Po batteries & have some spare but
have yet to figure out a way to easily configure and safely recharge a
stack of them. I'd need something like 5 or 6 in parallel and 12 or 13 in
series. Maybe make a 12V-50V dc-dc and connect the 24 x 12V blocks in
parallel. At least that would simplify the charger as control would be by
the circuit built into the battery case.

RP


On 13 February 2014 12:54, IVP <joecolquitt@clear.net.nz> wrote:

> > been doing tests on batteries lately due to my scooter batteries
> > wearing out
>
> I have this occassional notion to get an electric bicycle and recently
> noticed this company advertising
>
> http://www.volto.co.nz/
>
> At first glance seems attractive but, knowing how many dodgy
> batteries are around now, do I want to be spending $600+ every
> couple of years ?
>
> Hmmm.......no
>
> Joe
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