Recelling NiMH battery to Li-On/range

[Deleted member 4366]

Correct. you can relax now and enjoy your bike. Another happy ending - or is it a start?

 

[Mary Ferguson]

Correct. you can relax now and enjoy your bike. Another happy ending - or is it a start?

Thanks! You guys did mention that the LED is giving a false reading. I wont charge the battery today, and will measure again after tomorrow. At least I am reassured that its not gonna die on me.

 

[flecc]

Hi Flecc and D8veh.. I did as you said. After charge battery before use was 29.34 v, and then after riding to and from work today where it now shows half full, it reads 28.24 v . I guess this means the LED is wrong and battery still has a high charge left?

That means you have plenty of charge left Mary. If the meter was reading correctly it would still be showing at least three of the five LEDs and possibly four.

You may get four or more of today's trips.

However, lithium batteries liked to be charged regularly rather than completely emptied, so I'd suggest charging after each three of your regular daily runs, since they are quite short.

N.B. Crossed with d8veh's post.
.

 

[Mary Ferguson]

That means you have plenty of charge left Mary. If the meter was reading correctly it would still be showing at least three of the five LEDs and possibly four.

You may get four or more of today's trips.

However, lithium batteries liked to be charged regularly rather than completely emptied, so I'd suggest charging after each three of your regular daily runs, since they are quite short.

N.B. Crossed with d8veh's post.
.

Top stuff!Thanks very much for all your help and advice. That was my next question actually. An ebike shop told me that I shouldnt top up the battery but to almost drain it. Im glad Ive got ypu guys with good advice. Ill do that. Now I can chill!

 

[Nealh]

Your 24v battery will be have 7 cells groups each will charge to 4.2v max = 29.4v fully charged.
Your work ride and voltage reading of 28.24v indicates that each cell group (to with in reason ) will have discharged to 4.03v, you should be quite safe to ride your bike without stressing the battery to 25.2v or 3.6v per cell group if you need to.

 

[Mary Ferguson]

Your 24v battery will be have 7 cells groups each will charge to 4.2v max = 29.4v fully charged.
Your work ride and voltage reading of 28.24v indicates that each cell group (to with in reason ) will have discharged to 4.03v, you should be quite safe to ride your bike without stressing the battery to 25.2v or 3.6v per cell group if you need to.

Thanks Nealh. That makes sense now. Im only using it for short trips at mo but I think now I can ride longer at weekends with more confidence. Thanks very much.!

 

[Nealh]

If planning longer rides start modestly until you can gauge the battery range, so start with a 10 mile ride and check the voltage. There after increase your rides by 3 or 4 miles at a time.

 

[Mary Ferguson]

If planning longer rides start modestly until you can gauge the battery range, so start with a 10 mile ride and check the voltage. There after increase your rides by 3 or 4 miles at a time.

Brilliant. Will do. !

 

[Danidl]

Top stuff!Thanks very much for all your help and advice. That was my next question actually. An ebike shop told me that I shouldnt top up the battery but to almost drain it. Im glad Ive got ypu guys with good advice. Ill do that. Now I can chill!

. The ebike shop person was correct, if you were using NI cads or NI mh , but it's the wrong advice for lithium.