ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-06-2013, 02:47 PM   #16
Tankad
Pure Shenanigans
 
Tankad's Avatar
 
Joined: Nov 2011
Location: Milwaukee, Wi.
Oddometer: 87
Quote:
Yeah, I've considered hiding mine under the seat like that. My only hesitation, is that my cafe project had one requirement. The ability with not too much work to swap my solo seat back to the stock two person seat so my wife can ride with. If I hid the battery under the seat like that, I'd have to move the battery back to stock location when the 2 person seat is needed. Seeing that I will likely not ride with a passenger but 1 to 2 times a year, moving the battery wouldn't be too much of a pain if needed.
I've got the same problem with my cafe project. my plan is to take the stock battery holder and resize it or cut it down to fit the PC 680 exactly. than get rid of the plastic battery box side covers and sheet metal the sides in.... Like below:

__________________
-Tank
1974 BMW R75 /6
Tankad is offline   Reply With Quote
Old 03-06-2013, 02:54 PM   #17
Warin
Retired
 
Joined: Aug 2012
Oddometer: 1,845
Thinking outside the square.

The reason you need a good (large sized) battery is due to the old design Bosch stater motor. There is a more efficent replacment (not the Valeo, the Denso) starter motor that will ease the battery requirement.

Anyone with experience with the Denso stater motor and a smaller battery?
Warin is offline   Reply With Quote
Old 03-06-2013, 04:48 PM   #18
Beemerboff
Beastly Adventurer
 
Joined: May 2005
Oddometer: 2,293
These cheap $100- Valeo knock offs work just fine - I have 100,000 km on mine and is is still perfect.

The cheap Motobatt Oddessy copy works at least as well as the Oddessy too, 3 years / 100,000km and still perfect.

The only test I have seen of the new technology batteries had the Antigravity a long way in front, but that was a few months back and things will probably be changing with the others pretty quickly - you cant keep selling batteries that explode under full load !
__________________
Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST
Beemerboff is offline   Reply With Quote
Old 03-07-2013, 12:41 AM   #19
_cy_
Beastly Adventurer
 
Joined: Sep 2011
Location: Tulsa, Oklahoma
Oddometer: 5,797
Quote:
Originally Posted by Beemerboff View Post
These cheap $100- Valeo knock offs work just fine - I have 100,000 km on mine and is is still perfect.

The cheap Motobatt Oddessy copy works at least as well as the Oddessy too, 3 years / 100,000km and still perfect.

The only test I have seen of the new technology batteries had the Antigravity a long way in front, but that was a few months back and things will probably be changing with the others pretty quickly - you cant keep selling batteries that explode under full load !
really .. got any pictures of that exploded Antigravity battery?
any other details .. what size battery, etc?

Antigravity batteries with A123 26650 LiFePO4 cells are pretty rugged. it'd take some serious overcharging to pop A123 safety valves.

now with lithium cobalt li-ion cells like on Boeing 787 ... by overcharging little as 1/2v over fully charged state... it's quite possible to get those type cells to go into thermal runaway and explode. vs lithium iron phosphate li-ion cells are very difficult to achieve any type of thermal event by massively overcharging.

_cy_ screwed with this post 03-24-2013 at 11:53 PM
_cy_ is online now   Reply With Quote
Old 03-07-2013, 01:33 AM   #20
Beemerboff
Beastly Adventurer
 
Joined: May 2005
Oddometer: 2,293
The Antigravity was one that did not explode and came out in a long way in front on most tests.

The others that did explode only did so during extremely severe testing, but it could happen.

What I meant to say was that these things are still in the development stage, and are improving rapidly.
If one explodes under test the manufacturer is surely going to find out why and fix it PDQ before he is sued out of business, so a six month old review probably isn't worth much.
__________________
Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST
Beemerboff is offline   Reply With Quote
Old 03-07-2013, 02:21 AM   #21
RobboJ
Adventurer
 
Joined: Dec 2012
Location: Sussex by the Sea, UK
Oddometer: 63
I am also thinking the same thing. If the ballistic Evo2 8 cell or 12 cell can fit in my original air box then that is where I will put it, possibly editing the inside of the casting and making or finding an air filter to keep the original air intakes but still house the small battery.

I want to keep my centre stand and have a thin, flat seat so no room for it there either.

Keen to find a good compromise between form and function on a bike I will ride everyday
RobboJ is offline   Reply With Quote
Old 03-24-2013, 10:24 PM   #22
SERE Nate
Gnarly Adventurer
 
Joined: Jan 2013
Oddometer: 123
Will a ballistic 8 cell work or do you need the 12 cell? This is for a 77 r75/7 that will be running minimal guages/etc....
SERE Nate is offline   Reply With Quote
Old 03-24-2013, 11:01 PM   #23
Plaka
Brevis illi vita est
 
Joined: Jun 2010
Oddometer: 4,586
Quote:
Originally Posted by Sabre170 View Post
Yeah, I've considered hiding mine under the seat like that. My only hesitation, is that my cafe project had one requirement. The ability with not too much work to swap my solo seat back to the stock two person seat so my wife can ride with. If I hid the battery under the seat like that, I'd have to move the battery back to stock location when the 2 person seat is needed. Seeing that I will likely not ride with a passenger but 1 to 2 times a year, moving the battery wouldn't be too much of a pain if needed.

I'm curious....why did Cafebeemer make that battery pan with the "Z" bend? Is there a reason he didn't/couldn't use a flat piece of metal and mount the battery on that???
Tire clearance with the suspension fully compressed.

You can leave the battery location stock, use ordinary and far less costly batteries, and then wrap the thing instead of leaving it in a skeleton frame. You need cooling but a full box with interesting hole patterns could look good and it's strait up to fabricate. in fact, you could do some very interesting hole patterns.
Plaka is offline   Reply With Quote
Old 03-24-2013, 11:41 PM   #24
supershaft
because I can
 
Joined: Sep 2010
Location: San Francisco Bay area
Oddometer: 8,641
Quote:
Originally Posted by Plaka View Post
Tire clearance with the suspension fully compressed.

You can leave the battery location stock, use ordinary and far less costly batteries, and then wrap the thing instead of leaving it in a skeleton frame. You need cooling but a full box with interesting hole patterns could look good and it's strait up to fabricate. in fact, you could do some very interesting hole patterns.
Except it doesn't clear the tire. Too bad the bend in the Z is almost exactly where it will do the most harm. These threads would be a lot more interesting to me if more of the stuff had at least a chance of working!

supershaft screwed with this post 03-24-2013 at 11:49 PM
supershaft is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 06:54 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014