Battery replacement

[cjm_wales]

Morning

(2019 E-sommet VR, 1600kms)

Last week I joined a few fellow Ebikers & took part in a pretty epic night ride.

They were all on new-ish 600+ wH machines. The ambient temp was just below freezing.

We covered about 20 miles with a lot of climbing, and reached a decision point on the way home - fun route or boring road route. As the owner of the smallest battery, I had the casting vote - and seeing 2 bars on the display, I thought I'd be fine taking the fun option.

2/3rds of the way up a brutal climb the two bars just disappeared

It took me 45 very sweaty minutes to finally make it home (there was no way I could pedal it up!).

I understand the effect of cold on Li-on performance, but it was still a shock.

So here are the questions:
1. Is it probable that the battery has degraded & needs replacing?
2. does anyone here ride carrying a spare, and if so, how?
3. are there any companies that can re-cell my pack & upgrade the capacity?
4. where's the best place to get a backup pack?
5. Is it easy to swap the mounts to use the new 630wH pack and are the new mounts backwards compatible?

 

[Beekeeper]

Check out the EVOC ebike specific rucksack
Specially designed to carry a spare battery.

Full name = EVOC Sports Fr Trail E-ride

 

[thebarber]

You can check the health of your battery using 3rd party apps. I use emax but stunlocker s good
Deuter e pocket is good if you've already got a decent back pack, then you'll need to buy a 2nd battery. I got mine from the wooly hat shop.
There's companies on ebay will check your battery for around £30 then re- cell as needed.

 

[Jackware]

Have you got a light hardwired into the bike?

Answered - Shimano E8000 hardwired lights

Hi, I have made a light for my bike and printed a discreet bracket, it works really well, is aestheticly pleasing and for the £3.67 it cost is impressive. One consideration is that it's a usb 5v light, that is easy to overcome by putting a decent diode in line the voltage will drop enough to get...

www.emtbforums.com

 

[cjm_wales]

Have you got a light hardwired into the bike?

Answered - Shimano E8000 hardwired lights

Hi, I have made a light for my bike and printed a discreet bracket, it works really well, is aestheticly pleasing and for the £3.67 it cost is impressive. One consideration is that it's a usb 5v light, that is easy to overcome by putting a decent diode in line the voltage will drop enough to get...

www.emtbforums.com

Naah. Exposure Maxx D on the bars & Diablo on the lid. I'm pretty sure it's health + subzero temps on that ride, it's been pretty dependable since. I can't decide whether to go for the cheapest 504wh pack I can find & carry it, or go for the 630.