i had issues with my $50 Deka battery draining...then i realized my positive terminal was not screwed on tightly. now no more issues.

 

I thought the pc680 was to small personally. I decided to go with the pc925. Made my own tray out of some scrap. Mounted on side to clear my short route pipes and has been cranking my motor for almost 6 years!!! Only had to charge it once.

 

Listen to the first guy running a miata battery works fine, been using one for more then a year

 

I have the ETS Kit with their CSB battery. It's ok in Summer/Spring but in winter I had to tender it every night or else I wouldn't start the car in the morning.

Just ordered the Battery Relocation Kit from Summit and moving back to full size battery in the trunk.

 

+1 for this. I use an optima yellow top in the trunk. Battery is over 4 years old and has never needed a jump once. That includes 3 winters of the car sitting for 3-4 months straight. I hop in, cranks fine, fires and runs perfect. I wouldn't bother going any other route for a battery.

 

I have no issues with my ETS mini battery kit, but i'm considering relocating my battery to the trunk so I can run a catch can setup in the original battery location spot.

 

Sounds like i have a poor battery / product.

one drive thats 1.5 hours and 7 days sitting… and not cranking sounds a bit less right?

Will it erase the tune on the factory ecu?

 

Changing the battery will not erase/alter your tune.

 

I run a pc680 with a negative disconnector. If I let it sit for 3 week. I need a jump. Looking into a small jumper for my battery.

 

Just put a battery tender on it, especially if you don't drive it everyday.

 

That's interesting.

 

even if it stays disconnected for long periods?… say 2 - 3 weeks without a battery?

 

No. Your tune will never get erased. Regardless if you even change your battery out.

 

Out of curiosity, why is that interesting?

 

I hadn't heard of people having that problem with AGM batteries when disconnected.