Portable charger for travel, library, coffee shop, etc.

[metanewbie]

My Super Shark 48v 17.5 ah battery uses a three-pin mini XLR.

Is there a small/safe/quiet/portable/travel charger I can fit in a bag and use to charge at a library/coffee shop/etc?

Preferably 3a+

(ideally USA source)

Thanks!

 

[harrisonpatm]

My Super Shark 48v 17.5 ah battery uses a three-pin mini XLR.

Is there a small/safe/quiet/portable/travel charger I can fit in a bag and use to charge at a library/coffee shop/etc?

Preferably 3a+

(ideally USA source)

Thanks!

If you don't mind me saying. Since you're already removing a relatively large battery and bringing it into a coffee shop. Wouldn't any charger be smaller than the battery itself?

But otherwise, you can search for any reputable 54.6v li-ion charger on amazon, sort by reviews. Like this one, perhaps?

USA-source is going to be the hardest part.

 

[metanewbie]

If you don't mind me saying. Since you're already removing a relatively large battery and bringing it into a coffee shop. Wouldn't any charger be smaller than the battery itself?

But otherwise, you can search for any reputable 54.6v li-ion charger on amazon, sort by reviews. Like this one, perhaps?

USA-source is going to be the hardest part.

I plan to use an extension cable to keep the battery outside and locked on the bicycle.

 

[Zambam]

I plan to use an extension cable to keep the battery outside and locked on the bicycle.

How long an extension cable you plan on carrying?

 

[metanewbie]

How long an extension cable you plan on carrying?

I have this one, which I was planning to use. It's 15 feet. There's also a 25-foot version, which might be better?

 

[docw009]

I don't see any shop owner being happy with an extension cable out the door to a bike parked outside.

People bring laptops inside all the time and plug them in by their tables. I've not owned any plastic case chargers with fans that were quiet though. The 2A models w/o fans do get pretty hot. I guess it's just the chinese way,

 

[A-DamW]

Is there a small/safe/quiet/portable/travel charger I can fit in a bag and use to charge at a library/coffee shop/etc?

Great writeup:

An Ultra Reliable Ebike Battery Charger​

 

[Papa]

Excellent link A-dam. This is my backup 54V 12A solar storage charger... (yes, that's an original 20 YO Watts Up)

 

[Fatgadget]

Great writeup:

An Ultra Reliable Ebike Battery Charger​

 

[Fatgadget]

E-bike chargers unlike ordinary PSUs are supposed to stop supplying power when the battery is fully charged....just saying.

 

[99zip99]

You're super shark might only charge at 5 amps Max. ?
It depends on the BMS and the cells inside the pack.

 

[thebes]

E-bike chargers unlike ordinary PSUs are supposed to stop supplying power when the battery is fully charged....just saying.

what do you mean by "ordinary PSUs"? Most are cc/cv, exactly like chargers are...ie they will do a constant current until they hit a certain voltage and start tapering current off to remain at said voltage.