Can i put the battery in a rucksack?
- Thread starter skyloon
- Start date
Similar issue here... Full suspension MTB with not many battery placement options. I would not recommend an umbilical connection to the bike, wouldn't want to come off like that but people have done it.
I'd think of a way of trying to get the battery rack mounted, not ideal but perhaps only sensible option.
I'd think of a way of trying to get the battery rack mounted, not ideal but perhaps only sensible option.
I have one bike that I use with a rucksack battery.
I just run a cable from the top of the bag, over my shoulder and down under my shirt/jacket. I then plug it in to an Anderson powerpole near to my gentleman area. If you pull the cable, it simply detaches.
I accept that there is a risk if you crash it, however, I did some experiments the other day with a lithium cell and a hammer. I did get it to smoulder a bit, but it took a while. It certainly did not burst into flames.
I just run a cable from the top of the bag, over my shoulder and down under my shirt/jacket. I then plug it in to an Anderson powerpole near to my gentleman area. If you pull the cable, it simply detaches.
I accept that there is a risk if you crash it, however, I did some experiments the other day with a lithium cell and a hammer. I did get it to smoulder a bit, but it took a while. It certainly did not burst into flames.
ive done it, use a nice proper padded comfortable rucksacke with a waist strap and a long cord with an easily detachable connector.
heres the connector
heres the bag and bike
i had a 12v 26ah sla in the bag. i couldnt really feel the weight. the nice padded hikeing bag with the waist strap definately helps. a lipo would weigh nothing.
pros
there the stealth advantage
easy to swap batteries.
easy to charge batteries (if you cant take you bike next to a plug but you can a bag)
expensive batteries arnt left on bike in public to rob
any extra battery weight is under your "control" and not the bikes
you can get quite big bags for quite big batteries.
cons
if you fall off (i have) its pants if the cable doesnt detach
getting off and on the bike is a faff and make you look silly as the cable gets in the way
the extra cable length could be robbing you of a few vital volts and amps.
slas are heavy, dont try sla unless your after exercise
theres probably more to it but thats from my experience
heres the connector
heres the bag and bike
i had a 12v 26ah sla in the bag. i couldnt really feel the weight. the nice padded hikeing bag with the waist strap definately helps. a lipo would weigh nothing.
pros
there the stealth advantage
easy to swap batteries.
easy to charge batteries (if you cant take you bike next to a plug but you can a bag)
expensive batteries arnt left on bike in public to rob
any extra battery weight is under your "control" and not the bikes
you can get quite big bags for quite big batteries.
cons
if you fall off (i have) its pants if the cable doesnt detach
getting off and on the bike is a faff and make you look silly as the cable gets in the way
the extra cable length could be robbing you of a few vital volts and amps.
slas are heavy, dont try sla unless your after exercise
theres probably more to it but thats from my experience
Anderson powerpoles will solve this problem, and be a bit more manageable.ive done it, use a nice proper padded comfortable rucksacke with a waist strap and a long cord with an easily detachable connector.
heres the connector
heres the bag and bike
if you fall off (i have) its pants if the cable doesnt detach
getting off and on the bike is a faff and make you look silly as the cable gets in the way
the extra cable length could be robbing you of a few vital volts and amps.
Provided the cable has enough cross section area, the additional resistance from a longer cable will negligible.
I managed to get a big padded cycling bumbag just about wide enough to hold a Haibike battery and a bottle and a few other small bits. Even with the stupid projecting handle making the battery much wider than necessary I find this is much more comfortable than a backpack, and after a couple of hours, because it droops lower than my waist the spiky bits don't stick into anything too sensitive. I am not sure how long it will take for the battery to wear through the fabric, but I can accept having to replace it as it was only about £20.
I might try that with my 600cc super moto . I can put a few gallons of petrol in hot water bottles in a ruck sack to increase my range.
"might try that with my 600cc super moto . I can put a few gallons of petrol in hot water bottles in a ruck sack to increase my range."
Don't get them mixed up with your hydration pack
Don't get them mixed up with your hydration pack
