NoVa 350Z track build
The following users liked this post:
Aeneas137 (04-29-2023)
#403
so this is new to me. Was looking at the battery and found a bunch of paint peeling off in that area like it was being eaten by battery acid. All the cables look fine and the battery seems to be ok too. Not sure what's going on, it's almost like the battery fumes are eating the paint, but aren't these new batteries sealed? There was white powder all over everything, I washed it all down before I took the pics.
#404
there are no obvious vent holes on the battery that would allow attaching a breather tube except these oval ports on each side, but no way to plug a hose onto those... Is it just a **** battery design??
#406
Also occurs to me that the driver's side that this port is open towards is where the battery acid would slush towards during hard cornering at most tracks I got to. Yeah, I'll either have rig a breather hose of some sort or just go ahead and replace with a lightweight battery now, since this battery is from 2018 anyways.
The following users liked this post:
Aeneas137 (05-02-2023)
#407
On subject of batteries. A lot of my racing buddies are running Odyssey powersports batteries, these are also small motorcycle AGM batteries with 170 cranking amps, which seems to be enough. Not sure if the 600+ CCAs that stock battery or the Antigravity battery puts out is really necessary. Also, there is another brand of NOCO lithium batteries that are comparable to the Antigravity at lower costs. Their 700 CCA battery is $200 on Amazon. Has anyone tried the NOCOs in a car application?
And on subject of charging lithium batteries in cars. The reason they need a lithium compatible stand-alone chargers is that regular chargers have circuits that spike the voltage to remove sulphur buildup in lead acid batteries, those spikes can kill a lithium battery, so the charger needs to be able to provide voltage without spikes. But a vehicle alternator will work just fine to charge a lithium battery as the current is spike-free.
And on subject of charging lithium batteries in cars. The reason they need a lithium compatible stand-alone chargers is that regular chargers have circuits that spike the voltage to remove sulphur buildup in lead acid batteries, those spikes can kill a lithium battery, so the charger needs to be able to provide voltage without spikes. But a vehicle alternator will work just fine to charge a lithium battery as the current is spike-free.
Last edited by Dr Hoon; 05-02-2023 at 09:40 AM.
The following users liked this post:
Aeneas137 (05-02-2023)
#408
I bought a CTEK for the Cayman after a year of battery hassle. If it sits for 2 weeks, the battery was always dead and I got sick of that. The CTEK stays plugged in 24/7 when it's not being driven. I bolted an adapter to the battery terminals that sticks out the frunk lid. when the battery is full, the CTEK will let it drain down to 80% and then trickle charge it back up again, continuously, to keep the battery healthy. this company also offers lithium chargers. I imagine a lithium has less capacity so it might be a good idea to have a trickle charger on it.
#409
Yeah, lithium batteries are only starter batteries, the capacity is minimal. However Antigravity claims "The RE-START Batteries do not self-discharge like Lead/Acid Batteries. They can be stored 3x longer than lead/acid but should be checked every 4-6 months or sooner if connected to a vehicle with “Parasitic Drains”" Since my car resides in the trailer for up to 4 months at a time (with kill switch turned off) I do hope that's true.
BTW, my Boxster sits on a trickle charger most of the time as well. These cars do have quite a bit of drain with all the electronics.
BTW, my Boxster sits on a trickle charger most of the time as well. These cars do have quite a bit of drain with all the electronics.
Last edited by Dr Hoon; 05-02-2023 at 12:00 PM.
The following users liked this post:
Aeneas137 (05-03-2023)
The following users liked this post:
Aeneas137 (05-03-2023)
#415
#417
here's a similar one that has more amps:
ECI Power 12V 50Ah Lithium LiFePO4 is $230.
this would be a great topic for its own thread. I was just looking at anti-gravity and a bunch of other brands and I'm concerned about charge cycles. it seems like these Lion batteries aren't meant to stay topped off. but I think just like a phone battery, if you keep it plugged in all the time that shortens its life. but you also shouldn't let it go completely full or completely dead.
#418
Stock battery is 650 cranking amps, so the NOCO is actually higher. The 8ah is the capacity, meaning how many times you can crank it before it dies. Yes, it's much less than stock battery, but also the ah is calculated different so that 8 ah for lithium is equivalent to something like 20 ah for regular battery. Unless your car takes a while to start I'd say it's fine. Just don't use accessories when the engine is off.
Can you link the one you found?
If it's this one, it's only capable of 100 cranking amps, which I doubt is enough to turn over a V6.
ECI Power 12V 50Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery
https://a.co/d/fHrdHhg
Can you link the one you found?
If it's this one, it's only capable of 100 cranking amps, which I doubt is enough to turn over a V6.
ECI Power 12V 50Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery
https://a.co/d/fHrdHhg
Last edited by Dr Hoon; 05-04-2023 at 03:17 PM.
The following users liked this post:
Aeneas137 (05-04-2023)
#419
You will need way more than 100 to start the Z. Id get something in the 500 range at least.
https://www.pegasusautoracing.com/ad...goryID=BATTERY
heres a good list. where I got mine
https://www.pegasusautoracing.com/ad...goryID=BATTERY
heres a good list. where I got mine