Search found 4 matches

by wedge
Thu, 03 Jan 2013, 02:46
Forum: Batteries, charging, management and monitoring
Topic: Lithium Starter Batteries
Replies: 12
Views: 2733

Lithium Starter Batteries

Thanks acmotor that does help. I don't understand why Braille states their full charge voltage is 13.2V, when this will be exceeded in virtually all ICE cars? A lot of newer ICE cars have electricsl systems designed for calcium lead acid batteries, which need a charge voltage of 14.7 volts, so 3.68 ...
by wedge
Wed, 02 Jan 2013, 03:02
Forum: Batteries, charging, management and monitoring
Topic: Lithium Starter Batteries
Replies: 12
Views: 2733

Lithium Starter Batteries

I have been trying to read as nuch about lithium batteries as possible, and I see they are starting to be used as starter batteries for ICE cars and motorcycles (mainly by racers). However, their use in this application seems to contradict normal EV practices. For example check out Braille GU1R This...
by wedge
Sat, 06 Oct 2012, 02:38
Forum: Technical and conversion discussion
Topic: Mdified gearbox to save weight
Replies: 13
Views: 3198

Mdified gearbox to save weight

You could use a differential from a car with independent rear suspension (eg Mazda MX5) and couple the motor direct to that. You are a bit limited in gear reduction but there are a few diffs with ratios from 3:1 to 5:1 available. Another option for small cars is the Quaife QDF7ZR http://www.quaife.c...
by wedge
Sat, 06 Oct 2012, 02:09
Forum: Technical and conversion discussion
Topic: Subaru under-represented in EV conversion? Why?
Replies: 8
Views: 2705

Subaru under-represented in EV conversion? Why?

The Subaru Vortex is a nice looking car, in a Buck Rogers kind of way :) Good aero too, when it was released I believe it was the lowest aero drag passenger car in the world. There are a couple of reasons why there aren't many converted Subarus around: - The aren't many lightweight Subaru models, an...