Brammo Owners Forum

Brammo Enertia Discussion => Brammo Enertia Servicing => Topic started by: firebourn on January 24, 2012, 10:06:46 PM

Title: Charging on a 220v
Post by: firebourn on January 24, 2012, 10:06:46 PM

I am planning on adding an outlet for my enertia. She is that special. I want a 220v outlet in theory they should charge the bike twice as fast. But I discovered that the cord only takes 10amp. Its the number of amps that determine charge rate, right? Is getting the 220v worth the extra cash? Will a 220v out let charge the bike twice as fast?

thank you

Title: Re: Charging on a 220v
Post by: Brammofan on January 24, 2012, 10:19:28 PM

Not really poll-worthy, but I see what you're getting at.  Right now, the Enertia can be, theoretically, plugged into a 220 outlet, but the charger will still only charge it at the same rate as the 120volt outlet.  I think it's the charger and the battery management system that determine the rate of charge.  I'm sure someone (i.e. protomech or BrammoBrian) will come on here in a bit and be more accurate with an answer for you.

From what I understand, however, the Empulse will have a charging system that will allow for faster charging via a 220volt system.  But don't quote me.  ::)

Title: Re: Charging on a 220v
Post by: protomech on January 25, 2012, 09:52:06 AM

The lower of the power delivered by the wall plug and the power consumed by the charger will dictate how quickly the bike can be charged. For example, the Enertia I believe has around an 800w (or 1000w?) charger, which is delivered power to the battery. Chargers are typically 85% efficient, so the 800w rated charge power consumes around 940w from the wall. As long as the charger can accept your wall plug's voltage and frequency then it doesn't much matter if it is a 220v or 110v plug, it is the total power that matters.

Ex on 110v, a 800w rated charger would consume around 9 amps. On 220v the charger would consume around 4.5 amps. Either voltage would be fine if the plugs are rated for 15 amps.

The Empulse charger will be interesting, it can charge at up to 3 kw (3.5kw at the wall). That's significantly more than a 110v 15a plug can supply.. a 220v 15a or 30a plug should cut charge times roughly in half from 110v.

Title: Re: Charging on a 220v
Post by: SocalTech on August 17, 2012, 01:59:57 PM

I would recommend not installing the 220v.