Lock,

The case is what makes the batteries "transportable". Take a look at this video from Mobility Unlimited to get a better idea:





Ken if you're reading this where can I get a charger that fits the same kind of charging port as that bike. Mine is the same and I can't find anything.

Thanks,

Vic

Mobility Unlimited sells these 48V 3A 3 step chargers for our Condor E-Bikes and we do have limited stock of them. Call John DeMarco at Mobility Unlimited and he can assist you in purchasing one.

Ken Finch

The case is what makes the batteries "transportable". Take a look at this video from Mobility Unlimited to get a better idea:
Vic

Ah. OK. Gotcha... Nice of Mobility Unlimited to put up that video... BTW they say in the vid "...with no way to test reserve capacity...", so they need one of these:


http://www.cadex.com/...


Nice lookin batts in the vid... I mean I am only used to the quick (dis)connect slip on terminals and not those nice bolt down affairs... They sorta look like these batteries:
http://changrunchina....

Where's Angela? If she knows the dimensions of those batts (if she has the same ones) she otta be able to calc exactly what dimensions she has available and whether a Ping pack etc would fit.

Lock, Vic and Joshua...thanks for all this info. I've been out of touch for a couple of daze...not sleeping much...

OK...lots to take in for my non-techie brain :)
So, I'm hearing that lithium batteries will give more range, BUT take off speed and hills will be even SLOWER?! Wild. A tiny bit? Lot's? Do you know? I ride with the govenor unplugged, so am used to a pretty good take off. Lately, I'm riding with govenor plugged to give me the few extra kms needed to get home - and I feel like I'm crawling when I take off. All in what you're used to, I guess.

Lock...of course! your right about the overkill...a battery in a case in a case. So, the ping 48, 20 AH will fit...at least in the battery compartment. Thanks alot for the thought.

angela

So, I'm hearing that lithium batteries will give more range, BUT take off speed and hills will be even SLOWER?! Wild. A tiny bit? Lot's? Do you know? I ride with the govenor unplugged, so am used to a pretty good take off. Lately, I'm riding with govenor plugged to give me the few extra kms needed to get home - and I feel like I'm crawling when I take off. All in what you're used to, I guess.

Joshua said:

Li Ping Lifepo4 is typically Rated around 15A Continuous and 25-30A Peak for 30 seconds (am guessing here because Li Ping changes his suppliers so often it is hard to keep track) but 15A to 20A is pretty standard for the cheap PRC Lifepo4. Nuthin at all wrong with 15A to 20A providing that is all you need. Lead Acid can provide mucho higher Amps and have a Peak that can be sustained up to 3 minutes without failing.
Where you need PEAK Amps is when starting from a Dead Stop and for climbing hills/going into strong gusting headwinds. So Li Ping will not be able to deliver the very High Amps you are used to getting via SLA. You should see a decrease in starting torque and the e-scooter will feel sluggish on hills. Where you might have a problem is on steep hills your Lifepo4 BMS might kick in and shutdown your battery pack.
SNIP
You need to see what the Amp Rating is on your Controller before buying Lifepo4. Daymak might use a 36V Brushed Controller Rated at only 13A and then the Li Ping Lifepo4 woulod be an ideal match. IF your E-Scooter or E-Bike Controller is Rated at say 35A or like mine at 40A then the Li Ping Lifepo4 would be almost useless.

Think about 15A at 48V... that's 720 Watts... quite a bit more than the 500W nominal the motors are rated for.

Folks like Power-Sonic claim that for their SLA batts "...Low internal resistance allows discharge currents of up to ten times the rated capacity of the battery."

So yes, the SLA batteries themselves are capable of huge pulses of power for brief periods compared to cheap LiFePO4, but the controller electronics limit the maximum power to levels well below this. You existing controller (like the motor) will be rated as 500W nominal but able to carry higher levels of power for short periods, but not TEN times 500W! It's more often the case that a 500W rated controller might have a PEAK rating of only 700W... at 48V that's still less than 15A.

So yah, go ahead and check the label on your controller... I'm gonna say it's labelled as 500W with only 700-800W peak. If you see any manufacturers name and or model numbers give it a google too...

Curious to hear what controller you have

Lock

Lock the Li Ping Lifepo4 is typically rated in Amps and if you email Ping he will tell you that his batteries work fine on E-Scooters but not so well on e-bikes.

Typical Li Ping Amp Rating is 20A although I've heard of some as low as 15A being sold. It is a crap shoot with Li Ping because he changes suppliers. Li Ping is a Trading Company not a Manufacturer.

So what happens is you have a Controller rated at say 35A and your Lifepo4 is rated at 20A. You need to get the Controller down closer to what the battery delivers or you're wasting your money getting a BIG Controller that will never see 35A.

SLA/AGM will deliver 35A easily for short bursts which will power an E-Scooter up nice hills and give fast off the mark starts.

Lifepo4 prices tend to be based more on their Amp Rating with Li Ping being bottom feeders. The Lifepo4 I carry are Rated at 100A Continuous and 200A Peak and will be totally stupid to use all that power on an E-Scooter.

What would be considered a good Amp Rating would be 40A if you can find them.

IF it wasn't for the fire risk and cell balancing issues the BEST chemistry out there now is Li-Polymer

Lock...WHERE do I find controller info? NOT in my manual ANYWHERE? Where on the bike? Or maybe I google SHO COMMANDER...gotta love those e-scooter names!:)

http://www.valuride.c...
This is my bike's manual...is there ANOTHER name for controller? Would you mind glancing in the table of contents to see if I'm missing it?

Angela

http://www.valuride.c...
This is my bike's manual...is there ANOTHER name for controller? Would you mind glancing in the table of contents to see if I'm missing it?
Angela

OK, just did a search of the manual... it's a USER manual and not a TECHIE manual

...so no detailed specs for the controller. Most know that the auto industry relies on many suppliers for components and the China ebike biz is no diff... The company that assembled your bike would have sourced components from many suppliers. They might have manufactured the kick stand themselves... or the brakes etc but almost every other component will have been bought from somewhere else.

So ya need to find the controller/little black box... Just need to follow the power leads from the battery pack, or the wire from the accelerator... or the wires from the motor... all lead back to a little black box!

There will likely be manufacturers markings on the controllers case.

Nice to see in that manual that your controller does regen, but also lots of warnings to not overwork the controller eg start up slow from stops... makes me think it's peak rating is not that much greater than its 500W nominal rating.

Lock

I'll check out the little black box...thanks for the intro to it:) I'd like to be more in touch with the parts that make up a scooter.
Just bumped into this kinda interesting short article.

http://www.ibiketo.ca...

Angela