sacko
10 kW
You got a link to that coiled cable?
Great Lipo backpack
- Thread starter Spacey
- Start date
kfong
100 kW
I'm fortunate to not have back problems, but this past month I was getting them for the first time in my life. Lasted 3 weeks. It ended up being from a tense back muscle. No way would I want to chance stressing out my back after that. A proper back pack would be worth investing in, but the weight distribution would be crappy. I mount all my batteries to the frame. The lower the better, triangle ends up being the best location if you have the space. Use a CF shell for fire protection.
sacko said:
I have a boblbee metropolis back pack bought from ebay and have ordered the coiled cable from AUTAC UK. The coil is very expensive though, but i traded this off by getting the back pack for a third of its new purchase price and it is practically brand new. I bought the 2 core TPU 4mm cross sectional wire which will take 40 amps. I ordered 500mm which will extend to 3 metres and it comes with straight tails at each end of 150 mm. The boblbee pack has bolt holes near the bottom oft he pack which the coiled wire will fit through to get to the batteries inside. My lipos are in blocks of 4 taped together to make 54v 3ah packs. I have seven of these that i can parrallel together. Each block fits tightly into a small lipo fire bag with just the connector and fuse protruding from the lipo bag.
friendly1uk
1 MW
If your bag is full of lipo, your not fetching shopping anyway. You have nowhere to put it.
There are a number of removable pack solutions. I just turn a key and pull. However I just leave it on the bike with the key in it. What is a crook going to do with my battery.
I love the warm weather when I can go out wearing very little. Wearing anything on my back spoils this and sweat can't escape. I get wetter and wetter, with little evaporation to help cooling.
Bags are just not fun
There are a number of removable pack solutions. I just turn a key and pull. However I just leave it on the bike with the key in it. What is a crook going to do with my battery.
I love the warm weather when I can go out wearing very little. Wearing anything on my back spoils this and sweat can't escape. I get wetter and wetter, with little evaporation to help cooling.
Bags are just not fun
I know what you mean but i have no good way of carrying the lipo as it is a full suspension bike just for off roading and not for road/commuter use, there is not enough room to put enough AH on/in the frame. I would rather have a back pack than have more weight on a rear rack with the motor weight on the rear too. The controller and all wires will go to a frame bag and battery coiled wire will come from there into the back pack.
On my commuter I have my batteries in my frame (12s 20ah worth). But for trails, I need to move the bike around very quickly and the backpack was much much better approach from the tests I did. I understand how people may not like wearing a backpack though. I'm used to it from wearing heavy camelbak.
Gregory
100 kW
The issue I had when trying the backpack thing was having the tether. Weight wasn't an issue.
Every time I dismounted the wire was in the way and I was catching it when trying to swing a leg over, suppose I could have run it down my crotch. Just standing next to the bike with a wire umbilical was weird, once I walked away forgetting I was connected and yanked on the plug. It didn't work for me.
Every time I dismounted the wire was in the way and I was catching it when trying to swing a leg over, suppose I could have run it down my crotch. Just standing next to the bike with a wire umbilical was weird, once I walked away forgetting I was connected and yanked on the plug. It didn't work for me.
Oh yeah, had problem whenever I sat on top tube. It would disconnect. I fixed this by re-routing the connector from under seat to by handlebar. Once I did this, no more problems disconnecting. I also found it weird having this cable attached to the bike.
John Bozi
100 kW
Its a cool way to test things - I am glad I bought my backpack no regrets. I prefer to fill the back pack with beer now.
I have relaxed quite a bit about lipo. cheap cloth tape to tape them together and then cheap long velcro straps of ebay (60cm) there are many places on the bike for that.
I agree with a previous poster, especially in summer, nothing like just riding out with a tshirt and nothing else, unless your shopping... I eNded up buying the super light eco bag - MAKE SURE YOU GET THE LARGEST TORSO SIZE!
I have relaxed quite a bit about lipo. cheap cloth tape to tape them together and then cheap long velcro straps of ebay (60cm) there are many places on the bike for that.
I agree with a previous poster, especially in summer, nothing like just riding out with a tshirt and nothing else, unless your shopping... I eNded up buying the super light eco bag - MAKE SURE YOU GET THE LARGEST TORSO SIZE!
nechaus
100 kW
I had no issues with using a backpack on a 10-15kw ebike..
24ah 20s was not so nice to carry around... but 10ah was pretty easy...
I think the worst thing to happen would be if you crashed...got knocked out.. and had burning lipo/abs/nylon on out back right on your spine :lol:
but the chances... very unlikely...
I was flying a plane today... RC plane.. I smashed a foam glider into the ground ... from about 100 meters... plane went into pieces but the lipo is perfect... used that exact same battery in another plane and off she went... no problems...
I have never yet had a lithium battery blow up on me.. sometimes its hard to try and make them blow up as well...
at the end of the day...I would do it and not hesitate... I have personally spent over 5k on batteries...
24ah 20s was not so nice to carry around... but 10ah was pretty easy...
I think the worst thing to happen would be if you crashed...got knocked out.. and had burning lipo/abs/nylon on out back right on your spine :lol:
but the chances... very unlikely...
I was flying a plane today... RC plane.. I smashed a foam glider into the ground ... from about 100 meters... plane went into pieces but the lipo is perfect... used that exact same battery in another plane and off she went... no problems...
I have never yet had a lithium battery blow up on me.. sometimes its hard to try and make them blow up as well...
at the end of the day...I would do it and not hesitate... I have personally spent over 5k on batteries...
John Bozi
100 kW
Nechaus I always enjoy happy lipo stories thanks.
The more I hear and see the more I am happy to just sticky tape the f&^kers onto the bike anywhere that suits the bike or legs.
I have questions only about lvc now. I know that going past the lvc is bad and they may be damaged but has anyone ever reported anywhere in lipo land a fire or smoked out dangerous battery?
As my current set up is annoying me because I hate having to connect reconnect the alarms. (they drain the batteries if I leave them on)
The more I hear and see the more I am happy to just sticky tape the f&^kers onto the bike anywhere that suits the bike or legs.
I have questions only about lvc now. I know that going past the lvc is bad and they may be damaged but has anyone ever reported anywhere in lipo land a fire or smoked out dangerous battery?
As my current set up is annoying me because I hate having to connect reconnect the alarms. (they drain the batteries if I leave them on)
nechaus
100 kW
iv gone past the lvc on some of my very first packs .... its not good to go past the 3.3 volt mark as you will damage them... they will puff up and you will notice a rapid drop of power when this happens... obviously.. ... I quickly charged them and never the less used them again for another 20 cycles or something.. they end up being fat sausages and wont hold much capacity...
They also heat up alot more when they are almost fully drained...
these days i really baby my cells... I found commuting with Lipos to be a bit annoying because I always like to go over and check every single cell before and after my rides... just habit..
I dont use any bms.. I just carry around a battery medic or a cell monitor to check the packs if i feel like some things wrong or having a mid ride break.... but 99% of the time the total pack voltages works for me because i know the cells are all pretty similar.. so a cycle analyst is perfect..
You kind of build up a relationship with your batteries and get to know their behaviour... know how much range to expect and all that..
these days i use lipos for my joy rides and batteries with a bms for my low power commuter..
I have used tape plenty of times to hold the cells onto the bike.. looks suss.. but in some aspects it good because you can visually look at them for some piece of mind...I did this when i first started using them because i felt like i was carrying around bombs..
something id recommend doing when you first get lipo packs... hot glue the balance leads... use a decent amount just b4 the connector.. ... also taping the lead to the pack itself is a good idea to stop you from straining the wires from within the cells...
They also heat up alot more when they are almost fully drained...
these days i really baby my cells... I found commuting with Lipos to be a bit annoying because I always like to go over and check every single cell before and after my rides... just habit..
I dont use any bms.. I just carry around a battery medic or a cell monitor to check the packs if i feel like some things wrong or having a mid ride break.... but 99% of the time the total pack voltages works for me because i know the cells are all pretty similar.. so a cycle analyst is perfect..
You kind of build up a relationship with your batteries and get to know their behaviour... know how much range to expect and all that..
these days i use lipos for my joy rides and batteries with a bms for my low power commuter..
I have used tape plenty of times to hold the cells onto the bike.. looks suss.. but in some aspects it good because you can visually look at them for some piece of mind...I did this when i first started using them because i felt like i was carrying around bombs..
something id recommend doing when you first get lipo packs... hot glue the balance leads... use a decent amount just b4 the connector.. ... also taping the lead to the pack itself is a good idea to stop you from straining the wires from within the cells...
Neiler106
100 W
bigisland said:
I was searching the show us your battery pack thread, now 15-16 pages long. I stumbled upon this:
4 inch PVC Tube (vinyl fence post) Cap- used as LiPo battery box
Its basic hardware store 4" vinyl fence post that can be repurposed. Once the packs are in there and foam and nomex wrapped, it becomes a rigid yet flexible structure. The dimensions are lipo friendly for the 6s5ah packs. The nomex should help with fire mitigation.
BUILD - http://www.thingiverse.com/thing:113867/#files
CVillalobos
1 W
After around 4 years I'm still using the same backpack and batteries. Some issues: It would be nice if it was lighter and it can be a little sweaty in 100 degree weather. It does take me over 20 miles on one charge averaging 20mph though. I can get to work as fast as I can in my car due to avoiding stoplights and other traffic hassles.
I did crash once. When I dismounted the extra large plug I was using didn't release and it ripped off the cord. I had to peddle home. Now I use a smaller Anderson connector that will release easier if I ever dismount again.
I have never had a problem with the cord getting in the way. It hangs loosely at my side and I can stuff the extra cord in the pack. Nobody has ever hassled me about what could be in my pack. I take it into store all the time with the power cord stuffed in my back pocket. Of course I look pretty clean cut and Caucasian so I'm not getting racially profiled. To be on the safe side I should probably stuff the cord in the backpack when I'm walking around.
I'm happy with my backpack. It doesn't feel too heavy even on long rides. The bike is nimble. I can leave the bike and keep the $400 worth of Lipo batteries close to me. The pack still has room to carry tools and other odd and ends.
I did crash once. When I dismounted the extra large plug I was using didn't release and it ripped off the cord. I had to peddle home. Now I use a smaller Anderson connector that will release easier if I ever dismount again.
I have never had a problem with the cord getting in the way. It hangs loosely at my side and I can stuff the extra cord in the pack. Nobody has ever hassled me about what could be in my pack. I take it into store all the time with the power cord stuffed in my back pocket. Of course I look pretty clean cut and Caucasian so I'm not getting racially profiled. To be on the safe side I should probably stuff the cord in the backpack when I'm walking around.
I'm happy with my backpack. It doesn't feel too heavy even on long rides. The bike is nimble. I can leave the bike and keep the $400 worth of Lipo batteries close to me. The pack still has room to carry tools and other odd and ends.
Paladin
100 W
Here is a nice pack for batteries.
Icon squad 3.0
Made for motorcycles has a crash pad.
I used a fly fishing rectract(for line clippers or what-not) to keep the cable tight/in control/centered.
Even room for tools, pump, phone, wallet, keys...and some more. Oh and 12s lipo, 6x4cell.
Icon squad 3.0
Made for motorcycles has a crash pad.
I used a fly fishing rectract(for line clippers or what-not) to keep the cable tight/in control/centered.
Even room for tools, pump, phone, wallet, keys...and some more. Oh and 12s lipo, 6x4cell.
Attachments
cwah
100 MW
What about a 12 pockets tactical vest?
http://www.amazon.co.uk/pocket-camouflage-assualt-tactical-combat/dp/B00NAWOJE8/ref=sr_1_26?s=sports&ie=UTF8&qid=1429485636&sr=1-26&keywords=tactical+vest+pocket
1 lipo per pocket :lol:
http://www.amazon.co.uk/pocket-camouflage-assualt-tactical-combat/dp/B00NAWOJE8/ref=sr_1_26?s=sports&ie=UTF8&qid=1429485636&sr=1-26&keywords=tactical+vest+pocket
1 lipo per pocket :lol:
CVillalobos
1 W
Paladin said:
Nice setup! Looks very clean.
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