Usb Charge Rate

I was gifted a phone recently to use with map apps and have settled for OsmAnd+ which does the job just great.

I discovered my 2020 Street Scrambler already has a factory fitted USB socket under the seat! I didn't ask for this, so it must be a standard one, or maybe a freebie.

My phone keeps telling me that it's a slow charger when I connect it up. It doesn't seem to do a good job at all, taking a long time to make any appreciable difference to my phone's charge state. Also, if I use OsmAnd+, at the end of the journey the charge is still about the same as when I started. So it's basically getting just enough to maintain its charge state.

Is this normal? I would have thought it could be charged up pretty quickly from the bike, and would be able to add to the charge whilst using the phone app (which is not one that needs to connect to the internet or mobile network while in use).

I bought a USB charger kit for bikes that connects directly to the battery (it does have the option to be plugged into the loom) and I'm wondering if this might be a better option. More to the point, I've requested a USB charger be fitted to my new Tiger and am now wondering if I should bother with it.

 

I don't know where you get your chargers from, but mine are way more than 4-500mA. My PC based USB phone charger is at 1A and my Samsung charger is 1.55A at 5V, so I do question your figures.

However, overall you're confirming my point - the USB charger on the bike is of llimited value. As I said, what I'd really like to know is whether the Triumph USB output has a reduced output compared to what I would get connecting directly to the battery.

Edit: Never mind, I'll just measure the outputs and see for myself - should have just done that to start with.

Cheers all.

 

I'd just like to add that, after doing a bit more searching on the net I find that even bike USB chargers have different charge rates - so the Trumpet one may well be below what I would like.

For example, one that connects directly to the battery or plugs into the loom (like my own) has these automatically selected rates:

5V = 3A (plenty and actually just ideal for what I need)

9V = 2A

12/13.5V = 1.5A

 

I've found the data on the Triumph website - it outputs at 2A, which should be plenty.

I don't know what you mean with "power delivery" - that sounds to me like it's the same as "output" and it really is that simple. You don't need anything other than volts and amps to charge an item - anything else is just extras, such as the monitoring that you mention, and not necessary for charging.
They do things such as switching off the supply when the item reaches 100% and then switching it on again when the charge drops below a set reading.

I'm not after a fast charge - just the normal charge rate is fine. The bike didn't seem to be providing that, but as this is a new phone it's possible it does use that much power (with loads of junk I never use and can't uninstall!)

 

That's my point, really. At 2.1 amps it should be fast, but either it's not doing that amperage or my new phone is a hungry beast! I'll see if Google knows anything about that and I'll get my multimeter on the output.