Custom Battery Packs? INTERESTED?
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longhairedboy
1 W
For us yanks, onloop is almost 200 pounds. I'm 160 pounds (72kg) and my current 6S rig is still almost scary on just one of his 245kv motors (i damaged the other one on my favorite bike trail last weekend, wires got ripped out somehow, so i removed it and the bracket). I can only imagine how fast and far i could get on this pack.
Also, i love the idea of still being able to replace the cells. Having to order another $330 unit in a year or so would probably be a deal breaker for me. I already have to consider building my own case for the inevitable replacement of his older custom 6S 10Ah pack because i don't want to spend the kind of money that it would take to replace it when I can just get a set of Turnigys or Zippys and use the existing electronics.
This is still going to be a $400 pack by the time its gets shipped to the states though, so to make it feasible to use in builds for friends I'd have to order everything else from the states. Hopefully somebody here will be developing modular mounting hardware like Enertion and AlienDriveSystems (UK) have so i don't have to make friends with a local machinist.
Also, i love the idea of still being able to replace the cells. Having to order another $330 unit in a year or so would probably be a deal breaker for me. I already have to consider building my own case for the inevitable replacement of his older custom 6S 10Ah pack because i don't want to spend the kind of money that it would take to replace it when I can just get a set of Turnigys or Zippys and use the existing electronics.
This is still going to be a $400 pack by the time its gets shipped to the states though, so to make it feasible to use in builds for friends I'd have to order everything else from the states. Hopefully somebody here will be developing modular mounting hardware like Enertion and AlienDriveSystems (UK) have so i don't have to make friends with a local machinist.
torqueboards
1 MW
So your saying your pack isn't spot welded? It's very easy to replace a broken cell? You mention people buying your pack who can't charge off a lipo pack. What more trying to replace a unbalanced cell.
Ben's setup is also a single motor setup and that's no hills. This amp output is also going easy on your setup.
Your electric skateboard is very much like RC.
Either way good stuff.
Ben's setup is also a single motor setup and that's no hills. This amp output is also going easy on your setup.
Your electric skateboard is very much like RC.
Either way good stuff.
longhairedboy
1 W
i was wrong. according to his blog, price includes free shipping to anywhere in the world. More better by the minute. Think I'm going to preorder this right now.
onloop
10 kW
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- Jun 24, 2013
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riba2233 said:
This pack has LG HE2. These cells have been tested at 35A peak draw.. Officially rated by LG at 20A
in 10S3P config this pack could peak at 105A.
It is limited by BMS To 60A
60A is plenty. In fact I was testing this battery using a 10S ESC limited to 50A. No performance difference.
You do not need higher.
Freshair
100 W
Man this is tempting! Good on yea onloop
I'm with torque on this one. It cost $80 for 12s 5ah. Okp has gotten over 11miles with that setup running dual motors that's amazing!
For $330 you can get at least:
1) 3x 12s(10s) 5ah lipo = 15ah $240
2) high amp switch = $50
3) random soldering and wires and connectors = $40
Even thought the charger costs $100 it will last forever it's only a one time fee.
(we still never verified why you can't use a BMS to charge the batteries and then disconnect the BMS while discharging them).
For $330 you can get at least:
1) 3x 12s(10s) 5ah lipo = 15ah $240
2) high amp switch = $50
3) random soldering and wires and connectors = $40
Even thought the charger costs $100 it will last forever it's only a one time fee.
(we still never verified why you can't use a BMS to charge the batteries and then disconnect the BMS while discharging them).
Freshair
100 W
BShady said:
11 miles is amazing? Comments like this make me lean back towards lifepo4.
From the sounds of it the charger is included in the price of this battery pack. Maybe I am wrong.
Plug and play is a value all it's own. Dummy proof and warranty is nice too.
For me who currently does not have the gear to make a battery pack, getting someone else to do it for me is pretty invaluable. For those who want to do as little work as possible, they will always pay for someone to do the work for them.
onloop
10 kW
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- Jun 24, 2013
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- $329 USD is for battery, charger and shipping anywhere in the world.
- At best this pack could potentially offer upto 80% capacity after 500 charge cycles, i have also read from various sources cycles of 800+ that is 3-4 times the life expectancy of lipo. At worst it is probably going to out last your lipo by 2 fold At best 8 fold. So to put it in perspective If you ride/charge just once a week this pack will last 6 years or more at worst.
With torques recommendation and the above example of charging once per week. To get similar longevity results, you would have to buy, over the course of 6 years. 3 sets of $80 lipo (2x 6S 5AH) that's just to get the similar life in terms of charge cycles. SO This is $240 plus shipping Of approx $50 .... and it is only 216Wh.... so you spent $290 and still didn't get the same performance In terms of range as this pack is only 216Wh. Trust me I have used plenty of lipo. It's a false economy.
- Lipo quality is hugely different and unreliable. There is rubbish and there is better quality, the quality nano stuff is expensive. The cheap LIPO from hobby king is Rubbish. It is made by random Chinese factories that happen to offer HK the lowest price. I have had $100 packs puff up after only 30-40 charge cycles.
- With the Enertion UltraCell pack I offer you are only buying high quality cells. They are tried and tested. LG is a massive world wide company, Who has a dedicated chemistry department that spends millions in R&D to develop the best battery technology. This is what you get inside the Ultracell.
- Tesla cars use this battery tech and form factor... why? It is superior!
- Enertion UltraCell Range will be over 20 miles On dual motor. Even more on single motor. It is 270wh.
- it is difficult to make a LIPO pack Ultra thin Using batteries from hobbyking. Best you can do is 3 pouch high packs. Which is about 30mm.
- There is no advantage seperating the BMS from the cells. It would increase costs, decrease reliability and your cells would not be protected against over discharge. The BMS is really small and light weight. It is 100mm x 40mm x 9mm and weights 10 grams. Having it on the board isn't an issue.
Once you have built several electric skateboards you will realise that having an all in one, plug & play, solution is priceless.
- At best this pack could potentially offer upto 80% capacity after 500 charge cycles, i have also read from various sources cycles of 800+ that is 3-4 times the life expectancy of lipo. At worst it is probably going to out last your lipo by 2 fold At best 8 fold. So to put it in perspective If you ride/charge just once a week this pack will last 6 years or more at worst.
With torques recommendation and the above example of charging once per week. To get similar longevity results, you would have to buy, over the course of 6 years. 3 sets of $80 lipo (2x 6S 5AH) that's just to get the similar life in terms of charge cycles. SO This is $240 plus shipping Of approx $50 .... and it is only 216Wh.... so you spent $290 and still didn't get the same performance In terms of range as this pack is only 216Wh. Trust me I have used plenty of lipo. It's a false economy.
- Lipo quality is hugely different and unreliable. There is rubbish and there is better quality, the quality nano stuff is expensive. The cheap LIPO from hobby king is Rubbish. It is made by random Chinese factories that happen to offer HK the lowest price. I have had $100 packs puff up after only 30-40 charge cycles.
- With the Enertion UltraCell pack I offer you are only buying high quality cells. They are tried and tested. LG is a massive world wide company, Who has a dedicated chemistry department that spends millions in R&D to develop the best battery technology. This is what you get inside the Ultracell.
- Tesla cars use this battery tech and form factor... why? It is superior!
- Enertion UltraCell Range will be over 20 miles On dual motor. Even more on single motor. It is 270wh.
- it is difficult to make a LIPO pack Ultra thin Using batteries from hobbyking. Best you can do is 3 pouch high packs. Which is about 30mm.
- There is no advantage seperating the BMS from the cells. It would increase costs, decrease reliability and your cells would not be protected against over discharge. The BMS is really small and light weight. It is 100mm x 40mm x 9mm and weights 10 grams. Having it on the board isn't an issue.
Once you have built several electric skateboards you will realise that having an all in one, plug & play, solution is priceless.
onloop
10 kW
- Joined
- Jun 24, 2013
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if you want to build yourself a quality LIPO pack with similar Watt hours to the Enertion UltraCell you would need to buy these: http://www.hobbyking.com/hobbyking/store/__11941__Turnigy_nano_tech_6000mah_6S_25_50C_Lipo_Pack.html
They are about $80USD each + some shipping, you need two of them to reach 260Wh capacity... (so still 10wh smaller)
so batterys (2pcs) $160
high amp switch $60
misc connectors $10
Wire $10
Voltage display $2
Shipping $30-40
your time? priceless.
So total of about $272 (doesn't include charger price) and the charge cycle is still only 100-200 cycles!
and still only 260wh! Thick as a brick! charge only when supervised! NOT REGEN COMPATIBLE
or
$329 for UltraCell, inc charger. 300 charge cycles at worst.
longer range. ZERO soldering. Simple one-plug charging, ultra thin, safe chemistry. REGEN COMPATIBLE
They are about $80USD each + some shipping, you need two of them to reach 260Wh capacity... (so still 10wh smaller)
so batterys (2pcs) $160
high amp switch $60
misc connectors $10
Wire $10
Voltage display $2
Shipping $30-40
your time? priceless.
So total of about $272 (doesn't include charger price) and the charge cycle is still only 100-200 cycles!
and still only 260wh! Thick as a brick! charge only when supervised! NOT REGEN COMPATIBLE
or
$329 for UltraCell, inc charger. 300 charge cycles at worst.
longer range. ZERO soldering. Simple one-plug charging, ultra thin, safe chemistry. REGEN COMPATIBLE
ill be interested Onloop, just not for a few weeks (poor 
)
i think the pricing is fair for what is on offer, and you need to make a few bucks for your time and R&D. not everyone realises how much time can be spent just trialling and dropping cash on different solutions.
Ill PM to organise a pack.
cheers and keep up the good work
)i think the pricing is fair for what is on offer, and you need to make a few bucks for your time and R&D. not everyone realises how much time can be spent just trialling and dropping cash on different solutions.
Ill PM to organise a pack.
cheers and keep up the good work
CSN
100 W
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- Mar 4, 2015
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- 154
The Ennertion battery is pretty cool for a lot of reasons except for the charge time.
Just imagine any Saturday. Ride for an hour and then charge for 4 hours? Ouch.
If the price came down then maybe package of two for hot swapping.
What happens after the 300 charge cycles? can the cells be replaced?
Definitely LIPO's have safety and handling issues. How many cycles are people getting on HobbyKing's and Turnigy LIPO's?
Just imagine any Saturday. Ride for an hour and then charge for 4 hours? Ouch.
If the price came down then maybe package of two for hot swapping.
What happens after the 300 charge cycles? can the cells be replaced?
Definitely LIPO's have safety and handling issues. How many cycles are people getting on HobbyKing's and Turnigy LIPO's?
chickentail
100 µW
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- Mar 13, 2015
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I preordered
Why? I like a reliable battery pack that I can plug in for charging before I go to bed and that I can leave in the car for half a day without worrying about it. Doing this with a lipo would always leave a little bad feeling. I also like the flat measurement, to get this with turnigy packs would mean disassembling the packs, meaning a lot of soldering to get it that flat and to get it charging parallel on my 5s charger. Unfortunately I don't have the time for that.
Yes it's a little less DIY to buy a complete pack like that but there is so much left to customize- motors, esc, gearing, truck, board and in the end you would still get a board that better fits your needs and is less pricey than a complete board like boosted.
Thanks onloop for the work you put into it!
Why? I like a reliable battery pack that I can plug in for charging before I go to bed and that I can leave in the car for half a day without worrying about it. Doing this with a lipo would always leave a little bad feeling. I also like the flat measurement, to get this with turnigy packs would mean disassembling the packs, meaning a lot of soldering to get it that flat and to get it charging parallel on my 5s charger. Unfortunately I don't have the time for that.
Yes it's a little less DIY to buy a complete pack like that but there is so much left to customize- motors, esc, gearing, truck, board and in the end you would still get a board that better fits your needs and is less pricey than a complete board like boosted.
Thanks onloop for the work you put into it!
torqueboards
1 MW
Nice
It's definitely not a bad option. Just depends on each individual requirements and such.
If you don't already have a lipo charger and don't plan on having a collection of lipos. Custom built-in battery works well with all the nice features.
I've decided to look into it more and ordered a few prototype packs again myself.
Onloop has definitely got the right idea. This is more of a hands off approach for most newcomers in this hobby.
I've been charging lipos for a while now and it's like clockwork. I don't really think about it much anymore but for someone new it does have quite a bit of hassles.
Charging a laptop is definitely a no brainer.
It's definitely not a bad option. Just depends on each individual requirements and such.
If you don't already have a lipo charger and don't plan on having a collection of lipos. Custom built-in battery works well with all the nice features.
I've decided to look into it more and ordered a few prototype packs again myself.
Onloop has definitely got the right idea. This is more of a hands off approach for most newcomers in this hobby.
I've been charging lipos for a while now and it's like clockwork. I don't really think about it much anymore but for someone new it does have quite a bit of hassles.
Charging a laptop is definitely a no brainer.
onloop
10 kW
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CSN said:
Technically speaking these cells can actually be charged at 4A. So twice as fast as what I quoted. (Enertion Ultracell comes standard with a 42V. 2A charger)
But i have read that maybe charging at max of 4A it will reduce life cycle? Although LG does clearly state that the battery can support it.
Perhaps I might offer the fast charger for sale seperatley. Or give option to choose.
so if you are in a big rush you can use the faster charger for 2hrs charge time.
Freshair
100 W
And is there an option of buying just the battery pack without the charger? Think that may be a good option to have for people who already have a charger, or people who want to buy two battery packs and one charger.
onloop
10 kW
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The charger is very cheap in comparison to the battery Cost. So maybe you will save just $15USD.
But i might eventually offer different purchasing options.
But for now to keep things simple you get the charger and battery and free international shipping.
But i might eventually offer different purchasing options.
But for now to keep things simple you get the charger and battery and free international shipping.
thepronghorn
1 kW
What in the world are you talking about lipos not being regen compatible? Hobby lipo's are capable of much higher charge rates than your he2 cells, which means they are capable of much stronger regen than the 4A charge rate your he2 packs are rated for.
Stop spreading misinformation with your "Not Regen Compatible" claims.
Stop spreading misinformation with your "Not Regen Compatible" claims.
onloop
10 kW
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thepronghorn said:
I am talking about a specific configuration of components that is required to build a pack, using lipo, that offers the same features of the EnertionUltra Cell.... one of the key features of the ultracell is an "on/off" switch. If you use one of the high amp on/off switches sold by alien power systems, DIY electric skateboards and myself you cannot send power back into the pack due to the switch design.
Remove the high amp on/off switch and you can recharge lipo using regen....
But now you can't easily turn your eboard on/off.. .. see the problem. UltraCell solves this problem.
So please stop accusing me of spreading false info.
onloop
10 kW
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- Jun 24, 2013
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riba2233 said:
Interesting I'll have to research this more.
my goal is to make the best possible battery for electric skateboards. One of the most important things is being able to charge quickly. But longevity is equally important. So i suppose finding the perfect balance is my objective.
I don't want people reducing longevity because they are charging too fast.
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