Check out my battery project
5 Attachment(s)
I have started my zero weight project. (Adding lightness to increase performance) One of the first projects is replacing the factory battery with a ultra-lightweight battery. Here are some pictures of the project in process. I still need to make a bracket to hold the battery in place. But for the moment, the battery in snug and doesn't move.
The weight savings is 23 pounds (battery alone) plus the removal of the battery cover, terminal connectors and battery side housing. Let me know what you think. |
I'm in Ohio too. Will that start the car in the winter? Please post other weight savings ideas you have as well. Thanks.
|
Originally Posted by Optical TDI
(Post 2469320)
I'm in Ohio too. Will that start the car in the winter? Please post other weight savings ideas you have as well. Thanks.
|
800 CCA? really, Any links to the full spec of the battery ?
|
check out the search function instead
|
Here is a link to their site. I have been told that the rest of the specs are better than stock. However, I do not have those specs. There were not included with the battery. As soon as I get them, i will post them here. :)
http://www.batcap.net/800.html |
Originally Posted by TeamRX8
(Post 2469558)
check out the search function instead
SEARCH NOOB ! :lol: |
It is probably telling that they apparently don't provide the specs on their web site. For example, the Interstate battery web site provides complete specs for all their products. And since this apparently is a capacitor vs. a storage battery (that is not clear from their one-page description), I would be concerned about the ability of it to support recovery from flooding. That is, repeated drainage of the capacitor without recharging. And, can you use a battery charger to charge the capacitor? Dunno!
BTW, my guess is that the way they cite the capacity, "...800 peak amp!", that is probably not the CCA rating, otherwise I would expect that they would have stated 800 Amps CCA. But I could be wrong. Look forward to seeing the detailed specs. |
This is from http://www.lightav.com/car/batcap/batcap.html It provides a little more information.
Model 800 Meet our new and improved tough guy...Model 800. The Model 800 weighs 14 lbs. and gives you an unbelievable 800 peak amps! Auto racing enthusiasts and audio competitors alike have come up with some pretty creative ideas for this battery. 20 Ah Reserve Capacity 800 Cranking Amps |
1 Attachment(s)
"20 Ah Reserve Capacity
800 Cranking Amps" Note the original RX-8 OEM battery ratings in the shop manual page attached. For "normal" climates it was delivered with a battery rated at 40/48 AH, and for cold climates, the rating was 52 AH, so the BatCap "battery" at 20 AH reserve may not support the repeated engine cranking cycles required for flooding recovery. In addition, the original OEM battery was replaced under a service bulletin by a more capable battery. So, the 40/48/52 AH was not even adequate when called upon to crank the engine during flooding recovery. Also, Cranking Amps is not the same as Cold Cranking Amps, although the rating for this battery probably would have an acceptible CCA rating which obviously would be something less than 800. |
Just speculating, but I don't think this battery is built on capacitors, not with 20AH capacity.
I would guess it's using cells with low internal resistance, such as Ni-Cd, NiMH, or LiPO. If the latter, then you'd be well advised to carry a fire extinguisher. Or, maybe it's just a baby lead-acid with a big cap, to provide those 800 amps (but very briefly). Also, you'd be better off retaining the old battery housing, as it does allow some cooling air through the case to keep the temps down. Probably worth it for a few ounces of plastic. |
Thanks for the feed back guys. I have a little more information.
I spoke with the owner of Bat Cap. He was quite helpful. Here is what I learned.
So basically it is a well built baby lead-acid sealed battery. I plan to add a bracket over the top of the battery to ensure it cannot move. Also I plan to get another battery mounting base plate to modify to further reduce weight. :) Of course, I have saved all the connections so that I can return to stock if I have any problems. :uhh: |
Originally Posted by alnielsen
(Post 2469836)
This is from http://www.lightav.com/car/batcap/batcap.html It provides a little more information.
It looks like it was meant to be an aux battery. Not a starter battery, as you are using it.
Originally Posted by Go48
(Post 2469858)
"20 Ah Reserve Capacity
800 Cranking Amps" Note the original RX-8 OEM battery ratings in the shop manual page attached. For "normal" climates it was delivered with a battery rated at 40/48 AH, and for cold climates, the rating was 52 AH, so the BatCap "battery" at 20 AH reserve may not support the repeated engine cranking cycles required for flooding recovery. In addition, the original OEM battery was replaced under a service bulletin by a more capable battery. So, the 40/48/52 AH was not even adequate when called upon to crank the engine during flooding recovery. Also, Cranking Amps is not the same as Cold Cranking Amps, although the rating for this battery probably would have an acceptible CCA rating which obviously would be something less than 800.
Originally Posted by nycgps
(Post 2469529)
800 CCA? really, Any links to the full spec of the battery ?
It saids 800, but it has no words about CCA anywhere on the site (not even the full spec) |
I have a similar battery fitted (may even be the same one re-branded). it has started the car fine for about a year. even with short re-charging drives and rotary starts (cranking for ages) it has never gone flat. I have had the car off the road for a week and it still started fine. the only time I wouldn't fit one of these batteries is if I had an after-market alarm fitted or subs and amps in the boot.
|
Originally Posted by rotarenvy
(Post 2498565)
I have a similar battery fitted (may even be the same one re-branded). it has started the car fine for about a year. even with short re-charging drives and rotary starts (cranking for ages) it has never gone flat. I have had the car off the road for a week and it still started fine. the only time I wouldn't fit one of these batteries is if I had an after-market alarm fitted or subs and amps in the boot.
That is great to hear. So far, I have had no problmes. In fact, it appeared to be getting stronger. (It was sitting in my garage for a little while). I am still working on tie down. However, my car is in the shop right now. |
All times are GMT -5. The time now is 01:20 PM. |
© 2024 MH Sub I, LLC dba Internet Brands