Battery charging

[fooferdoggie]

Keep the spark away from the battery. Plug into the battery first and the safe alternating current wall last.

this is bosch you dont get sparks.

 

[DaveMatthews]

Copper rules, digital sucks. Audio quality is way degraded, dropouts, random misconnections, no ring, no dial tone. Also doesn't work after an earthquake.

FCC should mandate preserving copper as an option. The irony is, in my neighborhood, the digital service we are forced to use has a pitifully slow bandwidth anyway.

It's gotten too expensive to keep running. AT&T and others tried to sell their copper based business, and nobody wants it.

 

[PedalUma]

PRI

BRI ISDN was great for audio. For example, if someone had a home studio they could call into their radio station with separate stereo channels and one data channel. It was point to point, secure, and not bounced around the internet. I like my twisted pair for phone. I canceled DSL six weeks ago and now use a cable service of piggy backed Wi-Fi that is much faster for $20 per month. That IP changes each time I log-in and does not show my location.

 

[PedalUma]

you dont get sparks

The only times I have gotten sparks is when trying to charge that is already fully charged battery. I have not done that again in seven years.

 

[PCeBiker]

Plug into the battery first and the safe alternating current wall last.

That works for two of my batteries but the third battery gives a HUGE Crack of a Spark if I plug the battery in first.

All three of my batteries are Reention Dorado batteries but they use different BMS's inside.

This is the charge port on the third battery. I've plugged it in wrong 4-5 times. That was enough to almost melt a hole through the contact tab,..

With the other two batteries, I get some minor sparking at the wall, but it even sounds different, less intense.

 

[PCeBiker]

The only times I have gotten sparks is when trying to charge that is already fully charged battery.

I tend to only get sparks after smoking a Vado first.

I have not done that again in seven years.

It just keeps happening to me.
You'd think I'd learn by now.

 

[PedalUma]

The last time it happened I was selling a GT with a BBSOX, and I wanted the extra punch of a 100% battery for the test ride. I smoked the hole. Zap like a tazer gun with welding at the port. That was my third build. Here is that bike. I learn best when I screw-up. The current owner wants me to remove the motor system and make it a regular MTB now. That sucker ate drivetrains. I raced a fat dude on a Harley one Easter Sunday with it and won first to three lights because electric does not need revs for torque. He had moved through the heavy traffic to the head of a light next to me and with a chuckle said, 'Do you want to race'? Those Super MotoX tires are fast. The routing of the chain on that bike was weird. It went under the right chainstay.

 

[PCeBiker]

,.. The routing of the chain on that bike was weird. It went under the right chainstay.

I'd say that it's the routing of the chainstay that's weird.
It's supposed to attach at the bottom bracket.

 

[Gionnirocket]

Just bought a new replacement charger for my Juiced crosscurrent X after the 2nd "official" charger died on me. I got this one

Amazon.com

www.amazon.com

Plugged into the battery first, then the wall, and got a nice little spark.

What is the proper way to do this? Looks like from this thread if I reverse the process (wall first, then battery) for plugging in, it would spark at the battery, which sounds like its worse.

Is there a way to use this charger without a spark? If not, this is definitely a return.

I'm a follower of Battery first, then AC outlet.

That said the instructions on the charger state to plug in the AC for 30 seconds before connecting to the battery.
I'd give that a try as it may incorporate some logic to avoid sparking.
One of my chargers doesn't output fully and only pulses a low voltage/current until it is connected to the battery, then switches fully on.
This may be doing something similar.

When all else fails... Follow the instructions

 

[PCeBiker]

When all else fails... Follow the instructions

"The charger must be used for at least 10 minutes every 2 months to revive the capacitor"

I've never heard that one before?

 

[Gionnirocket]

I've never seen that either.... Though if you let the capacitor fully drain it does no harm. Then following the rest of the instructions, that should be plenty of time for it to fully charge again.

 

[PCeBiker]

Maybe it's to prevent the surge current and sparking at the wall outlet if the capacitors have drained?

When my battery sparks, it's the 30 amp surge current from my battery's BMS charging the capacitors in my charger.

I remember reading the specifications for a MeanWell LED driver (similar to our battery chargers) and the surge current was 65 Amps, but only for half a microsecond.

 

[Gionnirocket]

The charger itself is a load... transformers and such.
All enough to create a spark if no precautions in design are implemented.

 

[PedalUma]

Someone soon will be without hairspray for 15 hours overnight with only a white bread and one slice of baloney sandwich for dinner after standing in line for it, with court shining the next morning, after sleeping in his clothes on a vinyl mat and not shaving. Just like every other criminal. I want to see that spark the battery! Would be dictator! No capacitance for reality. Admitted grabber too. What a chump.

 

[PCeBiker]

This 200 Watt MeanWell LED driver (battery charger) has a surge current of 85 Amps for 0.6 milliseconds, on a cold start.

You can do some pretty serious welding with 85 Amps.

 

[Gionnirocket]

This 200 Watt MeanWell LED driver (battery charger) has a surge current of 85 Amps for 0.6 milliseconds, on a cold start.

View attachment 175044View attachment 175045


You can do some pretty serious welding with 85 Amps.

But you better be quick about it!

 

[Gionnirocket]

Someone soon will be without hairspray for 15 hours overnight with only a white bread and one slice of baloney sandwich for dinner after standing in line for it, with court shining the next morning, after sleeping in his clothes on a vinyl mat and not shaving. Just like every other criminal. I want to see that spark the battery! Would be dictator! No capacitance for reality. Admitted grabber too. What a chump.

Oh he may have more to eat than that on his first day.

https://www.facebook.com/video.php?v=77368537429

I wonder if he prefers syrup? or jelly?

 

[PCeBiker]

But you better be quick about it!

Just enough to tack weld a nickel strip to a lithium cell.

 

[Gionnirocket]

This thread is confusing.
Batteries are plug and play yes?
Some well-known members recommend waiting 1 hour, motor and battery pack cool to ambient temperature and plug in charger. No sparks. Only light displays when 100% it automatically turn itself off or slow charged. When not in use.
Ambient temperature here is ideal, I plug charger in immediately when I arrive home. 1-2 hours green light is on. Indicates battery packs are 100%.

Some less expensive batteries and chargers don't implement all of the possible safety features. Then add that the one now in discussion is higher current, 4 amp, and that can make it worse.
A spark at the AC outlet isn't unheard of and is acceptable. You could introduce a switch to the outlet which are designed to work under load and suppress the arc.
At the battery connection I would avoid as it will ultimately cause damage over time.

 

[teskow]

This thread is confusing.
Batteries are plug and play yes?
Some well-known members recommend waiting 1 hour, motor and battery pack cool to ambient temperature and plug in charger. No sparks. Only light displays when 100% it automatically turn itself off or slow charged. When not in use.
Ambient temperature here is ideal, I plug charger in immediately when I arrive home. 1-2 hours green light is on. Indicates battery packs are 100%.

This is contrary to any battery charging instructions on any of the electric bikes I have owned.