Battery charge port:

Batteries, Chargers, and Battery Management Systems.
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garyal1   10 mW

10 mW
Posts: 28
Joined: May 18 2018 7:17pm

Battery charge port:

Post by garyal1 » Apr 19 2018 12:56pm

I have a 48 volt 17.4 AH battery with a barrel connector charging port. Can I use this port as power output for temporary operation of small 48 volt tire compressor?

If this is not OK, then how should I set this up? My battery is a Dolphin pack with a female jack that connects when you lock the pack into the bike. My goal is to be able to add air to my fat bike tires while out on a ride, say coming off sandy beach going onto pavement.....

Thanks in advance for any advice.

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fechter   100 GW

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Joined: Dec 31 2006 3:23pm
Location: California Bay Area, USA

Re: Battery charge port:

Post by fechter » Apr 19 2018 1:22pm

Yes. I have tried it and it works. The charge port can't handle a lot of current, but the pump takes less than 2A. There is no protection for low battery or over current using that port, but it shouldn't be a problem for the amount of time it takes to pump a tire.
"One test is worth a thousand opinions"

garyal1   10 mW

10 mW
Posts: 28
Joined: May 18 2018 7:17pm

Re: Battery charge port:

Post by garyal1 » Apr 19 2018 2:58pm

Thanks!

So I will just make sure and put a fuse inline with the jack I plug in so as to have over current protection.

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fechter   100 GW

100 GW
Posts: 12921
Joined: Dec 31 2006 3:23pm
Location: California Bay Area, USA

Re: Battery charge port:

Post by fechter » Apr 20 2018 10:35am

garyal wrote:
Apr 19 2018 2:58pm
So I will just make sure and put a fuse inline with the jack I plug in so as to have over current protection.
That is a good idea.
"One test is worth a thousand opinions"

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