Security, How to do it?

trex

Esteemed Pedelecer
May 15, 2011
7,703
2,671
don't bother, just ride as often as you can, your battery will be as strong as you use it. One day, you will go so far that it will get flat, then you'll know your range!
 

flecc

Member
Oct 25, 2006
53,604
30,874
Best to avoid fully discharging if it's not necessary for a journey. It's the extremes of charge, full or empty, that cause the most chemical stress.

However, no need to be obsessive about this with today's lithium batteries. The best of them seem relatively unaffected by the use conditions.

N.B. Crossed with Trex post. As he says, use and enjoy.
 

halfer

Esteemed Pedelecer
Any opinion about if fully dischargethe battery or not?
Thanks :)
Do you mean for the first use? Personally, I would. My approach is to do a series of little journeys early in the battery's lifetime to work your way down to 10-20% charge (small distances means that if you get down to nothing, you don't have far to pedal back home). Then charge it back up again fully. You can do that a couple of times if you wish, but once always seems fine to me.

From then, decide if you will charge after every use (longer journeys necessitate it) or every few uses (very short journeys can be combined into one charge, thus reducing the number of charge/discharge cycles).

So while I use my Ave XH-3 (a Bosch central crank MTB) every day, I expect it gets 250 charges per annum rather than 350 - thus extending the warrantied life of the battery. Well, in theory anyway - never had to put the warranty to the test!

Bear in mind that your battery management system (BMS) should prevent you from completely exhausting the battery's charge - it will cut out before the battery is so dead you can no longer charge it.
 
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RobF

Esteemed Pedelecer
Sep 22, 2012
4,732
2,312
(very short journeys can be combined into one charge, thus reducing the number of charge/discharge cycles)..
In Bosch speak a single charge cycle is empty to full, or equivalent.

So fully charging the battery, say, twice from half-full is one charge cycle.

Generally, batteries function better when 20 per cent charged or more.

I try to keep mine that way, but am not anal about it, I all but flattened a battery today - I could have put the spare on earlier, but waited until I wanted to stop.
 
D

Deleted member 4366

Guest
Charge you battery now and each time you return from work. Don't run it right down if you don't have to.
 

Frankie24

Pedelecer
Apr 14, 2014
133
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Hi everyone.
Definitely I will charge the battery todAy as I still with the same lines of battery. I am so lucky and I couldn't come with my new bike to work. Why? Yesterday playing football one guy tackled me and my ankle is gone now.. It looks like my last injury so I will have to be without the bike for about 2-3 weeks. The best I can do I charge the battery before the time to use it comes..
 

RobF

Esteemed Pedelecer
Sep 22, 2012
4,732
2,312
Hi everyone.
Definitely I will charge the battery todAy as I still with the same lines of battery. I am so lucky and I couldn't come with my new bike to work. Why? Yesterday playing football one guy tackled me and my ankle is gone now.. It looks like my last injury so I will have to be without the bike for about 2-3 weeks. The best I can do I charge the battery before the time to use it comes..
Two or three weeks won't matter, but if you are leaving the battery for a long time, best to leave it somewhere between 50 percent and 80 percent charged.

The thing to avoid is to leave it fully charged for a long period.
 

Frankie24

Pedelecer
Apr 14, 2014
133
15
36
So for 3 weeks is not a difference between full charge or leave with the 2 lines I have? I tough it could be better to fully charge as is nearly empty..