Hi
I have a question about batteries, which I will get to, if you will forgive what may appear to be digressions, for the very knowledgeable people here - your insights will be greatly appreciated.
I have posted here already, re: dissatisfaction with my Gtech Sport, in a "reply" to a chat about swapping wires to bypass the controller settings (on said Gtech). I'd already planned to remove the controller and battery in favour of one of each I'd already bought as part of a hub motor kit - and today I took it out for its first spin, having done just that. I'm very happy with what I think is a massive all round improvement.
Stats according to a cheap wireless speedo...
Top speed throttle only: 21mph; pedalling too: 22.5mph (my feet could go no faster).
Distance on one charge: 27m (roughly a quarter of which was done on full throttle, the rest pedalling and throttle to maintain 15-16mph, all on the flat, apart from a couple of small hills, with a strong-ish headwind in places).
Average speed: 14mph
The battery is 48v, 13s5p, which I bought to power a 1000w hub motor (which was used once and abandoned because I felt like a hooligan riding it through the streets of my small town- it's in a dry place waiting for me to sell it), and the controller, unsurprisingly, is 48v too - and both of them are now powering the 250w Bafang on the Gtech Sport.
So, at last, my question(s):
I think I read on this site that two smaller capacity batteries of e.g. 5Ah would give a greater combined range than one 10Ah. Is this true?
Does the range I managed today sound pretty good for the battery (or is it just impossible to say, with so little to go on)?
I like the idea of multiple batteries. A bit of a pain to swap them over mid-trip, perhaps, but not too much, and the option of taking just one on short trips, or three for long ones, etc., appeals.
Your thoughts and opinions sought. Thanks in advance.
I have a question about batteries, which I will get to, if you will forgive what may appear to be digressions, for the very knowledgeable people here - your insights will be greatly appreciated.
I have posted here already, re: dissatisfaction with my Gtech Sport, in a "reply" to a chat about swapping wires to bypass the controller settings (on said Gtech). I'd already planned to remove the controller and battery in favour of one of each I'd already bought as part of a hub motor kit - and today I took it out for its first spin, having done just that. I'm very happy with what I think is a massive all round improvement.
Stats according to a cheap wireless speedo...
Top speed throttle only: 21mph; pedalling too: 22.5mph (my feet could go no faster).
Distance on one charge: 27m (roughly a quarter of which was done on full throttle, the rest pedalling and throttle to maintain 15-16mph, all on the flat, apart from a couple of small hills, with a strong-ish headwind in places).
Average speed: 14mph
The battery is 48v, 13s5p, which I bought to power a 1000w hub motor (which was used once and abandoned because I felt like a hooligan riding it through the streets of my small town- it's in a dry place waiting for me to sell it), and the controller, unsurprisingly, is 48v too - and both of them are now powering the 250w Bafang on the Gtech Sport.
So, at last, my question(s):
I think I read on this site that two smaller capacity batteries of e.g. 5Ah would give a greater combined range than one 10Ah. Is this true?
Does the range I managed today sound pretty good for the battery (or is it just impossible to say, with so little to go on)?
I like the idea of multiple batteries. A bit of a pain to swap them over mid-trip, perhaps, but not too much, and the option of taking just one on short trips, or three for long ones, etc., appeals.
Your thoughts and opinions sought. Thanks in advance.
