Search found 17 matches

by strepto
Jun 22 2022 11:27pm
Forum: EBike Technical
Topic: What happens to an ebike when it spends 2 days underwater?
Replies: 6
Views: 404

Re: What happens to an ebike when it spends 2 days underwater?

Oh wow, spontaneous combustion in *asbestos*? That sucks. I'm really sorry you had to go through that. Sadly I know all too well about how the heat spreads around, having lost most of my stuff to a fire in my flat in my 20s (non-battery related, started in my flatmate's room so it was either electri...
by strepto
Jun 22 2022 12:19am
Forum: Bike Mechanical & Structural
Topic: Seeking frame options for a dual suspension ebike
Replies: 8
Views: 675

Re: Seeking frame options for a dual suspension ebike

Thanks for all the ideas guys! Yeah I know 26" will be a lot easier to come by. I guess I'm sort of attached to 29/700c after riding that size wheel for so long, plus I have spare tyres and so on. The little speed boost is also nice to have, although it's really only 3kph on the Grin simulator,...
by strepto
Jun 22 2022 12:17am
Forum: EBike Technical
Topic: What happens to an ebike when it spends 2 days underwater?
Replies: 6
Views: 404

Re: What happens to an ebike when it spends 2 days underwater?

Fair enough. Hard to argue with that level of experience! Let's just say this battery's days are definitely numbered. In the meantime it's well supervised on charge, and stored in a non-flammable part of the (brick-walled) garage. If it went up in a worst-case fireball there's plenty of room around ...
by strepto
Jun 21 2022 4:31am
Forum: EBike Technical
Topic: What happens to an ebike when it spends 2 days underwater?
Replies: 6
Views: 404

Re: What happens to an ebike when it spends 2 days underwater?

Heh. Yeah thanks :) I'm well familiar with lithium batteries and all their spectacular failure modes after flying racing drones for 10 years. :flame:

At least this pack is relatively self contained. However, the usual common sense of not charging unattended applies doubly now!
by strepto
Jun 20 2022 11:31pm
Forum: EBike Technical
Topic: What happens to an ebike when it spends 2 days underwater?
Replies: 6
Views: 404

What happens to an ebike when it spends 2 days underwater?

Thought this might be of interest to the community. I have a MAC motor / 14S5P Jumbo Shark from em3ev.com converted hybrid which was sadly flooded in February, when the Brisbane river broke its banks and I wasn't home to move the bike. After drying out I let it sit for ages. I figured it would be co...
by strepto
Jun 20 2022 11:11pm
Forum: Bike Mechanical & Structural
Topic: Seeking frame options for a dual suspension ebike
Replies: 8
Views: 675

Seeking frame options for a dual suspension ebike

Hi everyone, I've been riding a MAC converted hybrid ebike for years, but it's getting long in the tooth (and was recently underwater for several days which has... aged it somewhat...). I'm also getting a bit older and sick of Brisbane's bumpy roads so I'd really love to build up something with dual...
by strepto
Jun 18 2021 7:10pm
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

That's great! Thank you so much! Heh, a Kotlin fan, I see...
by strepto
Oct 23 2020 4:32am
Forum: Battery Technology
Topic: Speedict neptune lite
Replies: 212
Views: 31117

Re: Speedict neptune lite

For my 20c I'd say just get yourself a little 12v buck converter. Current requirements would be super minimal for a light and maybe a few accessories. Probably the easiest way around it all. Then you can just run it straight from the main wiring harness, no need to tap into the BMS etc.
by strepto
Mar 22 2020 7:29pm
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

No prob :) Good luck, it's not the best app ever... the password is the last four digits of your BMS serial number (as it appears in bluetooth devices when you scan).
by strepto
Mar 22 2020 6:45pm
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

by strepto
Apr 25 2019 6:40pm
Forum: Battery Technology
Topic: Speedict neptune lite
Replies: 212
Views: 31117

Re: Speedict neptune lite

Yes, you need a CC/CV power supply I believe though. That will output whatever the pack voltage is at the given current, until the pack voltage hits the cutoff, after which it will progressively reduce the current to 0. Unless the Neptune does this for you of course. I'm not super familiar with the ...
by strepto
Mar 27 2019 3:20pm
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

Nope, sound of crickets...

Not super impressed with this BMS at the end of the day. It doesn't balance very well and the app makes me log back in/reconnect to the bluetooth device every time it starts... a somewhat painful process...
by strepto
Jan 04 2019 2:03am
Forum: EBike Technical
Topic: New em3ev batterý pack
Replies: 75
Views: 13329

Re: New em3ev batterý pack

Sigh. Ten points from Hufflepuff.

Cheers for the quick reply.
by strepto
Jan 04 2019 1:57am
Forum: EBike Technical
Topic: New em3ev batterý pack
Replies: 75
Views: 13329

Re: New em3ev batterý pack

Hey does anyone know the name of the charge port connector that em3ev use? It looks like a 3 pin mini DIN plug but it's slightly different... and the charger side is male.

Am making up my own second charger out of existing 12-24v supplies (I have a lot of amps available) and a boost CC/CV module.
by strepto
Dec 15 2018 9:36pm
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

Thanks! That looks like the manufacturer, judging by the products available and the app info. Unfortunately their website it a bit thin on detailed information and download links...

I may shoot them an email but I suspect there will be a bit of a language barrier...
by strepto
Dec 09 2018 1:15am
Forum: EBike Technical
Topic: EM3EV Bluetooth BMS App
Replies: 22
Views: 6088

Re: EM3EV Bluetooth BMS App

I'd second that. An open source option would be awesome too. I'm not super impressed with the existing app; basic spelling errors... and didn't play nicely with my tablet... We'll see how it goes over time (I only just set it up). Does anyone know the make/model of the BMS they use? Maybe we could h...
by strepto
Mar 14 2018 11:17pm
Forum: Battery Technology
Topic: Speedict neptune lite
Replies: 212
Views: 31117

Re: Speedict neptune lite

So... trying hard to find a review or even detailed specs on this. Anyone here got any experience/links?