Di2 charger question

a148pro

Bought a second hand bike with di2, but unfortunately no charger

Not entirely sure what exactly I need to charge it?

The chain rings were duraace and the shifters ultegra

I'm not sure is there a different di2 electronic set for the two groupsets?
The code on the box under the stem is SM - EW90-A and if I google that it suggests its duraace

Can I buy a generic charger for this as the prices that come up online aren't great

80 euro odd, which seems to be without another wire I think I'll need:

https://www.wiggle.co.uk/shimano-dura-aceultegra-di2-internal-battery-charger/?lang=en&curr=EUR&dest=6&sku=5360506327&kpid=5360506327&utm_source=google&utm_term=&utm_campaign=Shopping+-+All+Products&utm_medium=base&utm_content=mkwid|sRtTgxZKM_dc|pcrid|315029095377|pkw||pmt||prd|5360506327ie|&pgrid=63077937576&ptaid=pla-523212774938

On the assumption I can charge it through my laptop is there any way around this? Really something like this should only cost a tenner

ED E

a148pro wrote: »

On the assumption I can charge it through my laptop is there any way around this? Really something like this should only cost a tenner

Hahaha, no. This is Shimano. You're meant to bend over and take it. Be glad you don't need the diagnostics box, thats €200.



The one you linked is just micro USB, a "phone charger". You can plug that into a laptop or any 5V usb source and away you go. The brick that talks to the Di2 controller is Shimano proprietary and a must have. Its one saving grace is it will also allow firmware updates and some basic health check info so its not *just* a charger.

a148pro

So basically I need to buy the one I linked to and a wire that will connect it to a laptop or a wire with a plug to go into the wall?

Thanks

Type 17

Yes, buy the one you linked to (or search for it by Shimano model number - it's the SM-BCR2 - to see if that's the best price out there), and you'll also need a USB micro cable (same as most Android phones, loads of USB rechargeable bike lights, etc) and a 5v USB power source (phone charger etc).
As mentioned, you can also connect the SM-BCR2 to a Windows laptop and use the free Shimano E-Tube software to update and configure your Di2 setup.

http://e-tubeproject.shimano.com/about/

Luxman

If it has an internal seat post mounted battery I would be inclined to remove that and check terminals for corrosion. Recently had to do the same and needed a new battery.

triggermortis

The best thing about Di2 is the battery life. You will only need to charge it a few times a year. It’s the polar opposite to an iPhone battery!

a148pro

Yeah I haven't charged it since purchase in august and its still showing full, albeit I haven't been out much

Thanks lads

Highway_To_Hell

a148pro wrote: »

So basically I need to buy the one I linked to and a wire that will connect it to a laptop or a wire with a plug to go into the wall?

Thanks

any micro USB to USB cable will work.

a148pro

For anyone reading this page in the future I managed to get one through wiggle for €69 delivered, which I assume will do the job will post if it doesn't