The pedelecs forum have always recognised that there are a wide variety of reasons that bring individuals into ebiking, and that there are a wide variety of solutions to best meet individual's needs.
In my case (57, arterial disease, post heart attack and bypass surgery) I wanted to be outside, getting fit and seeing life anew after many years of 7 days a week effort in building up a business, and taking insufficient exercise along the way.
So for me, whilst wanting the exercise and wanting to enjoy the great outdoors once again, it was a cosntant pleasure to be out riding the Torq whenever I could.
I had bought the bike in January 2007; not that long after the change from NiMH to Li-ion. I could not have told you about the different battery types then, because my interest in the detail of the machinery did not take off until discovering the forum in September 2007.
Psychologically, I was looking for reassurance that I was getting fitter; in reality I knew that I was and I was certainly feeling a whole lot better.
What I did not know at the time was that battery chemistry differs between types just as human chemistry differs between individuals.
With my Li-ions (I had bought a spare with the bike), I started by riding the bike 2 or 3 times to empty, noting that my level of unfitness allowed me to achieve some 25 miles of range, and what joy to be out and about on a bicycle again.
As my workouts progressed, I knew that I was getting fitter, but, perversely, the range was getting shorter - if I wasn't careful I would be caught out with a dead battery on a shorter ride than normal.
Was it me or was it the battery that was getting weaker ?
What a pleasure it was to come upon a group of knowledgeable people who had come to ebikes from a variety of directions, and several of whom were using the Torq.
I learnt that a Li-ion battery dies a little on a daily basis, does not like being discharged completely (except for initial conditioning on the first couple of uses) and is not able to deliver very high currents for extended periods.
Conversely, a NiMH battery benefits from full discharge and is known to grow in capacity over the first 100 charges or so.
So, looking back, I can see that I was looking for a psychological boost to my returning fitness by measuring the extra distance that I could ride.
NiMH probably provides this better than Li-ion, but the chemistry of Li-ion probably does not benefit from being ridden to exhaustion so frequently.
By October, I was using the capacity of 2 batteries to achieve less distance than on 1 back in January. Of these the poorest, was giving about 9 miles.
If I had used the bike differently (eg shorter daily commutes between charges), then most likely the capacity would not have dropped away so much. There have been instances mentioned on the forum where Li-ion has achieved long life by frequent replenishment.
So, for 2008, I still want to use the bike for longer distances and I hope to maintain the excellent range of a new Li-ion battery by sharing the work between two, and not riding to empty.
It should be noted that the ezee Torq of 2007 is a high geared bike that can be hungry on rider and battery. The revised Torq Trekking has been regeared to reduce the pressure on the battery.
If anything deeper than this is helpful, then I hope that the battery guys on the forum will pick up on it.
James