Certified FOCBOX Suppliers | Focbox Unity 4 Day Sale

High Power 10s Lipo Battery Pack with BMS


#1

Looking for more hill climbing power than I could get from my 10s2p with 26650 Lions(it works great on flat ground)
This new project is a 10s1p using Turnigy 2s/5000mah/60c hard packs from Hobby King
5 Packs wired in series is smaller and 2lb lighter than the Lion pack!



I used these jst extension wires to extent the balance wires to the bms:
omitting the black ground wire and using only the pos wires from cell 1 and 2 of each pack.
I did this instead of hard wiring to allow for easier testing and replacement of individual cells

I attached the packs to the deck with servo tape.

Hard wired the packs in series for better power transfer and to reduce bulk.
Using adhesive lined shrink tube and squeezed the ends to close it up.




I decided to keep the balance lead connectors for easier testing and replacement of individual packs.


Completed:

I took it for a quick test ride with only 38v on the pack. Powering up a 12% grade the voltage sag was no more than 1 volt.
More test results to follow…


Which BMS should I choose for a 10s lipo setup?
Battery Management System + Zippys?
How do you charge your longboard?
New Build - What kind of battery setting will I need?
Diy battery pack using Basen 26650 hi drain Li-ion cells
Noob Build: Parts List
Battery Management System + Zippys?
A theory on hill-climbing: MASSIVE 12s LIPO's, FOC, dual 6374, and the c-word
Putting together a LiPo battery - advice please :)
Too Many Amps or voltage cutoff?
I DID IT GUYS ! I built it
Thinking of building my first Eboard, how does this look
How should my charging solution be?
START HERE | FAQ for DIY Electric Skateboard builders
What setup will give me more range
Help picking BMS amperage
[NEED HELP] Picking battery for first built (36v)
First build, parts feedback
Lipo's vs Lion?
10S LiPo 8000mah Electric Longboardw/ Wiiciever and BMS...?
Suggestion on battery pack
36" Kicktail | 90mm Dual HUB | 10s2p (10x 5000mAh 2s 20C) | Still need BMS + Wiring & Enclosure - Help/Suggestions
Commuter | Loaded Dervish | Caliber II | Turnigy Aerodrive SK3 213KV | Custom mount | 8S1P 8000 mAh | VESC
Looking for a battery in Australia
Starting first build and could use some help with parts
From racing drones to electric skateboards, time for the first build
10S2P bms wiring help needed
Good price on turnigy graphene 2s2p 5000mah hardcase
Help with battery
Utter noob help
The Namasaki Rebuild- 10s Lipo w/BMS| Dual Carvon V2.0 | FOCbox's
First DIY electric longboard
Ceramic Surfer | Arbor: Highground | Modular flight ready 12s Lipo 220Wh | Dual 5065 140kv | Torque 218's | 97mm | GT2B | Commuter
High C-rating means good quality battery?
Ready to start wiring all the parts BMS!
I have been riding my first board for about a month. Here are my thoughts! Also how I reduced the vibrations!
What's the difference in performance between dual a 6374 and dual 6355?
Battery not Charging!
Upgrading batteries a year later
At what voltage your pack reaches 100%
Topkek | Vanguard Flex 2 | Single APS 6355 190kv | Caliber 2 trucks |10s LiPo (?) | VESC
Hoping to built a fast ESK8 with no problem climbing hills
Any tried the BASEN IMR 26650 5000mAh Cells?
Series and Parallel Skateboard Circuits
First time build! Never going to start if I don't post this
6s2p battery capcity question LGHG2
Tried a cheap ESC - not so wise, need advice if it will work
May I graduate (probably highschool level not college level :D) from this forum?
Charging in series - help
The Green Missile | First Build | Planning Stage: Figuring out the electronics
Which BMS should I choose for a 10s lipo setup?
Budget / EU / Commute / Help Wanted
"Project X" | First Build | CustomDeck | MBS ATS Truck | Dual 190kv | 10s Lipo | Dual FOCBOX | Build Log
The Namasaki Rebuild- 10s Lipo w/BMS| Dual Carvon V2.0 | FOCbox's
Planned Build (Switch 40)
Battery Choice (lipo vs li-ion)
The Sarlacc | Custom Deck | Dual TB 6355 190kv | 12s4p N.E.S.E. 30Qs |Surfrodz RKP/Psychotiller Mounts| DieBieBMS | Psycotiller Enclosure
My very first build - for an inexperienced rider. | 125 KV motor | 2x5s1p 5.8Ah | ESC w/BEC ~25-30 kph GOAL | Help appreciated!
Bestech BMS, Switch not working
Koowheel thread
Great Parts for Sale ***CLOSED***
First time build 6374 single drive
Wiring and Charing 3 4s batteries in series
Another noob needing help on my first build
You're My Board, Blue | BeercanBoards Kegger Lite | 90mm ABEC Clones | Single Belt Drive | Hobby LiPo Packs | VESC
LiPos C ratings vs mAh battery choice
RE/PT'ile >> Red Ember Drop Deck / Psychotiller 6x2in AT wheels, x2 190kv 6355 motors / x2 VESC / 10s3p 30Q battery pack
My final enclosure solution
Need help with charging
First Build Choices | 12S2P OR 12S1P LiPo?
#2

Very interesting build. This is the first lipo with BMS I’ve seen. Just curious, how are you going to go about charging? Will there be a power switch?


#3

The BMS has a built-in power switch.
I’m charging through the BMS with a 42v laptop style charger.


Budget Trampa Carver Build Possible?
#4

Ah ok thanks. Do you mind linking where you got the BMS?


#5

This is exactly what i was thinking about doing, those 2s lipos are thin, are you using a bestech bms??


Beginner build mountainboard (please help me)
#6

Yes, bestech 80a 10s bms


#7

http://bestechpower.com/37v10spcmbmspcbforli-ionli-polymerbatterypack/PCM-D223V1.html


#8

hmmm that would be the only thing that would kill the price for me, i was thinking about a cheaper bms just for charging


#9

These are very reasonably priced. Only around $60
Or you could use a less expensive charge only bms. Just be careful, some cheap bms’s are unreliable.


#10

just need to buy 2 of them is the only problem and then sent to New Zealand which i would get cause they have a switch built in but finding another buyer for one with NZ shipping fees might be hard.


#11

Just charged the battery to 100% and when for a test ride through the hills.
4.5 miles and the battery only dropped to 84%!
Think I’m gonna get more than the 10mi I was hoping for.


Budget / EU / Commute / Help Wanted
#12

Wait sorry if I misunderstood, but the lipos are 10S 5000mah? And they’re in series? Wouldn’t that mean they are 50S 5000mah? I obviously don’t think that’s what you are trying to do so I just kinda assumed it’s 10S 25a?


#13

There are 5 packs in series. Each pack is a 2s/5000mah/60c
So its a 10s1p 5ah 300a discharge.
You may ask, Why in the world would anyone need a battery with 300a discharge?
Point is, very little or no voltage sag when accelerating or climbing hills.
When voltage sag is greatly reduced, You can take the pack lower without tripping the low voltage protection.
And less capacity is needed.

UPDATE
The true discharge capability of this battery is more like 90a, NOT 300a.


Noob question thread! 😀 ask your questions here!
Noob question thread! 😀 ask your questions here!
#14

If you conecting battery in series the discharge is counting same as Ah? Only voltage doubles.
5x 2s 5000mah 60c in series = 10s 5000mah 60c?
Max amps at 10s (36v) :
60c x 5000mah ÷1000= 300a
Or in paralles capacity and discharge doubles?
5x 2s 5000mah 60c in parallel= 2s 250mah 300c?
Max amps at 2s (7.4v) :
300c x 5000mah ÷1000= 1500a
Am I wrong?


#15

In parallel it would be
7.4v
Voltage would be too low for eskate.
The C rating doesn’t change.
Only voltage or capacity changes.


#16

You could connect 6 packs in series and parallel
To make a 6s2p
22v 10ah 60c


#17

Some right some wrong.
The C rating never changes.
Series = multiply voltage
Parallel = multiply capacity
Five 2s/5ah/60c in series =10s/5ah/60c
Five 2s/5ah/60c in parallel =2s/25ah/60c


#18

Hey, really cool build. Very inspired and wantt to do something similar. Is it possible that you could make a diagram of what you did? I recently joined the community and have been reading a lot to figure out how the BMS works and what not but can’t quite understand how you set this up. (I understand the series connections but not the BMS part)


#19

I’m with you on this one. wanting to buy Turnigy 5000mah 2s 20c, but no idea (at least, its 3am where I live my brain might be fried) how to increase cap with those batt packs and increase its voltage?


#20

I’m at work now but soon I will give you more info on the balance wiring as soon as I can.