Zero motorcycle Battery balance

[Doctorbass]

Once i got my new Zero 2011 i immediatly began to personalize it as i want.

The battery health is something i consider inportant and i decided to add some balance port to it that will allow me to charge individually each of the 14 cell string independently at up to 30A or to just monitor it with my celllog 8 hand held 1 to 32s display.

Few picture of the battery inside and the added wires and anderson connectors:

I added the orange wires on the cells tap that connect to the Anderson 15 pins balance port.
That's two orange 16 gauge wire per positive of each cell group that join a 12 AWG silicon wire and then to the anderson 30A connector. just enough for up to 20A balancing current

[Doctorbass]

Next:

[Doctorbass]

Now a bit of VOLTRAGE MONITORING

[Ryank]

Brotha, you are just freak'n great! I really enjoy seeing how you get the technology up to YOUR standards!! Thank you again for your sharing.
I wonder if it would be fun to have one of these, or the "Stealth"...(?)

[Doctorbass]

I wonder if it would be fun to have one of these, or the "Stealth"...(?)

Believe me... The zero is amazing!!

I love it!!

Doc

[Arlo1]

I thought the chemstry from the 2011 and older Zero bikes was a self balancing type kinda like lead????

[bzhwindtalker]

LI-mn if I recall... Sounds great, but where can I buy this kind of cells?

[Doctorbass]

LI-mn if I recall... Sounds great, but where can I buy this kind of cells?

yes you can, Thes eare Emoli cells made in Canada. Model 26670 2.9Ah 3.8V.

These also exist in teh rigid powertools battery.

Doc

[bzhwindtalker]

Thanks for the real world info on those, better energy density than M1's and 10c rating, WITH self balancing and safety to boot.
Sound good to me! Any idea where to get some of them?

[bAUMISCH]

would love to see the same "inside" shots of the 2012 ZF 6 and ZF 9 packs - i'm riding ZF-9 myself and I won't touch it

[Doctorbass]

would love to see the same "inside" shots of the 2012 ZF 6 and ZF 9 packs - i'm riding ZF-9 myself and I won't touch it

I saw inside.. it,s many pouches.. not cylindrical cells.. and there is a well designed PCB that connect to the cells.

Doc

[Ypedal]

Nice work Doc!!

I love the anderson plug vs the printer LPT type pins.. makes me feel so much better... those tiny little pins on printer ports scare the hell outa me.

[c_a]

you should buy one of my battery monitors:
http://epo-bike.de/?page_id=89

pics here:
http://epo-bike.de/?p=404

I use toughcon connectors:
http://www.toughcon.de/kunststoff_runds ... 3052029202
they are available with up to 37 poles

have fun with the zero!

[Doctorbass]

you should buy one of my battery monitors:
http://epo-bike.de/?page_id=89

pics here:
http://epo-bike.de/?p=404

I use toughcon connectors:
http://www.toughcon.de/kunststoff_runds ... 3052029202
they are available with up to 37 poles

have fun with the zero!

Yes, They are amazing, but it would be more interesting to me if they could be in French or english ...

and have an interesting price

Doc

[gasfreeearth]

Great work Doc!

[DolphLundgren]

Thanks for posting this Doc. Big props for your courage taking the battery apart!

Is this picture showing the voltage fully charged, or could the cells get closer to 4.2 if you let the battery on the charger longer?
(Sorry for off topic) What voltage would you choose for storage if you're not riding the bike for 3-4 weeks?

[Doctorbass]

Thanks for posting this Doc. Big props for your courage taking the battery apart!

Is this picture showing the voltage fully charged, or could the cells get closer to 4.2 if you let the battery on the charger longer?
(Sorry for off topic) What voltage would you choose for storage if you're not riding the bike for 3-4 weeks?

It's the 95% charge i think, usually 100% allow the batt to go (58.8V full or 4.2V full)

for 3-4 week storage best is 100% charge right at the begining of the storage since at the end of the 4 weeks the bms would have drained a part of the capacity...

cells prefer 50% SOC for long life but with a BMS that drain a part of teh energy, it is always better to fully charge it.

Doc