New beginning

[mark20]

id say slap on that 72v battery!

 

[HumanPerson]

id say slap on that 72v battery!

I want to but my gut keeps telling me to upgrade the controller first

Toss up between a KT controller or the grin phase runner.

 

[mark20]

your 60v controller SHOULD be able to handle the 72v battery as long as you don't bog the motor too much.

 

[HumanPerson]

your 60v controller SHOULD be able to handle the 72v battery as long as you don't bog the motor too much.

Yeah, in the settings it says it can go up to 72v, was just thinking that perhaps it would be better for the motor
if i upgrade the controller first.

But that second battery would be nice

Of course i could get another stock voilamart 1500w controller and then get the battery


Mark you just may be on to something there brother!

 

[HumanPerson]

Another question for ya mark, do you think this will be ok for a heat sink once i take the circuit boards out?

I already took them out and am left with 2 halves of finned heat sink...prolly gonna use that on the stock voilamart controller.

Here is a pic of the device i am talking about (not mine but the same thing): https://www.solidrop.net/photo-15/g...er-than-antminer-zeus-asic-scrypt-machine.jpg

 

[HumanPerson]

I think they will make good heat sinks https://cryptomining-blog.com/wp-content/uploads/2014/04/gridseed-blade-miner-3-580x580.jpg


Gridseed bitcoin miners i have laying around LOL

 

[HumanPerson]

My Wife brought home this from her sisters house,
https://www.ebay.com/itm/Instep-Tak...320997&hash=item34391c4ca1:g:iREAAOSwkHJf6g6J


Didn't have the hitch hook up thing so i made one out of a copper tube attatched to the legs on the rack.

It said not to go over 10mph, well i did and it handled well at 29mph without a load and with 25lbs. in it.

My sister-in-law had it for 5 years so it looks a bit beat up but it seems to work out well as a grocery hauler



Ride Safe Everyone!



HP

 

[mark20]

nice, and I totally missed your question my man!

those heatsinks should be fine, probably better than the stuff the stocker came with.

 

[Street Ryderz]

Yeah, in the settings it says it can go up to 72v, was just thinking that perhaps it would be better for the motor
if i upgrade the controller first.

But that second battery would be nice

Of course i could get another stock voilamart 1500w controller and then get the battery


Mark you just may be on to something there brother!

That grin controller is nice but remember that it's battery and bms output that really limits you not the controller or motor, most battery packs have 50 amp bms or less unless you build it with a better bms and the grin even though highly programable still is only good for 55 amps and so if you take your 72v x 50amps = 3,600 w or 3,950 @ 55amps and its unlikely that unless stalled or loaded beyond 80% from the free spin and you persist in giving full throttle the motor will ever draw that. The average running draw for a 1500w motor is around 18 amps maybe 30-35 on take off if you gun it, you can go to the grin site and use their sorta dyno and configure just about any commonly used setup to see all these values.

Motor Simulator - Tools

Our ebike motor simulator allows you to easily simulate the different performance characteristics of different ebike setups - with a wide selection of hub motors modeled, and the ability to add custom batteries and controllers and set a wide variety of vehicle parameters you'll be able to see...

ebikes.ca

 

[HumanPerson]

So when riding and go WOT my 1500w system shows up to 18690w for a few minutes of riding.

Is that normal?