The Lotus Cars Community banner

1 - 14 of 14 Posts

·
Registered
Joined
·
239 Posts
Discussion Starter #1 (Edited)
Hi all,

Yes, I've read through the numerous threads, but most are not that recent, and also I'm still a little confused.
The battery that came with my car (got the car 3 months ago) had been great, until I installed a dash cam. The camera is connected to the cigarette lighter socket via a USB plug. The camera turns off a few seconds after the car is off, so maybe the battery just died from old age?

Anyways, I'm looking for its replacement, something stock that fits the OEM bracket. Can I just go to Pep Boys/Autozone/Car Quest and get something off the shelf, like Optima Yellow Top or Red Top? Costco doesn't have anything that fits my 06 Elise.

I've read about the Shorai, but will also have to connect it to a charger/balancer. I'm willing to do that but is it worth it? And, won't I need to fabricate a new bracket too?

Thanks,
 

·
`08 Elise-SC-220
Joined
·
519 Posts
My Elise had an Exide battery in it when I bought the car. I have since replaced it with an "Electro" from South Korea. I am not obsessed with the weight factor. I almost went with https://www.samsclub.com/sams/duracell-automotive-battery-group-size-35/prod3590253.ip?xid=plp_product_1_25 and probably will when I need a replacement. These Duracells are working great in my other vehicles and don't cost an arm and a leg (unless you buy them from Batteries plus) who get almost twice the Sam's club price. Key takeaway is the Group 35 specification. They fit the battery bracket perfectly and are "reverse terminal" oriented to accommodate the cable placement. Stand by for the other members to pile on with improvements to this information but this is working for me. The car lives on a Battery Tender when I'm not driving it.
 

·
Registered
Joined
·
239 Posts
Discussion Starter #3
Thanks 3carmonte,

So as long as any battery is Group 35, it'll fit?

BTW, PepBoys doesn't have anything for the 2006 Elise, AutoZone doesn't even have the car available as an option.
 

·
`08 Elise-SC-220
Joined
·
519 Posts
Thanks 3carmonte,

So as long as any battery is Group 35, it'll fit?

BTW, PepBoys doesn't have anything for the 2006 Elise, AutoZone doesn't even have the car available as an option.
Yes. The Group 35 is not one of the more common "off the shelf" battery's for cars but that's the one. There are several exotic, lighter batteries members use but require a custom bracket to hold them down properly. Some members move their battery's to the front of the car for better weight distribution. Lastly, I am not certain that the charging system in our cars is completely compatible with AGM type batteries so I don't spend the extra money on those either.
 

·
Acme Super Moderator ** The Enforcer **
Joined
·
7,598 Posts
You can do what you like, but an AGM or a more expensive battery like the Shorai will save up to 30 pounds depending on what you're replacing. I've run AGM batteries in my C6 Corvette, and I have used a Shorai in my Exige S for 4+ years (same battery). A friend uses a Shorai in his daily driver C6 with no issues. I've also run the Shorais in multiple motorcycles and they've always been outstanding. The charging system isn't an issue.

I honestly don't understand why people buy sports cars and then want to run crappy tires, cheap batteries etc.


San
 

·
Registered
Joined
·
239 Posts
Discussion Starter #6
The power is not totally dead, the interior dome light still comes on, albeit not as bright as before. Dash lights did not come on, nor did the headlights. So, I tried to jump start the battery with this, but no go. Pushing the start button got me the tat-tat-tat sounds, I think the battery is beyond saving.

 

·
Registered
Joined
·
239 Posts
Discussion Starter #7 (Edited)
San,

Is this the battery you're using in your car?
I notice that it doesn't have the protruding terminals. How do you connect the cables?
Also, how do you fasten the battery in place? Do I need to custom fabricate a bracket?

https://shoraipower.com/lfx36a3-bs12-p126


And is this the charger that I should get to charge the above battery?

https://shoraipower.com/sho-bms01-p134

Also Googled Big Crank batteries, which one of these fit a 2006 Elise?

https://www.batterymart.com/c-big-crank-batteries.html


Thanks!
 

·
Acme Super Moderator ** The Enforcer **
Joined
·
7,598 Posts
San,

Is this the battery you're using in your car?
I notice that it doesn't have the protruding terminals. How do you connect the cables?
Also, how do you fasten the battery in place? Do I need to custom fabricate a bracket?

https://shoraipower.com/lfx36a3-bs12-p126


And is this the charger that I should get to charge the above battery?

https://shoraipower.com/sho-bms01-p134

Also Googled Big Crank batteries, which one of these fit a 2006 Elise?

https://www.batterymart.com/c-big-crank-batteries.html


Thanks!
That's the battery and charger I have. The battery accepts standard threaded posts/connectors as shown in my picture. Shorai includes a wide variety of adhesive foam pads with different thicknesses to 'fill' the gaps of normal battery brackets. You can see the foam pads (gray) on the left and right sides of the battery in my picture.

Can't tell you which Big Crank battery will fit your battery bracket. You'll need to measure. Big Crank, Deka, Braille, Napa, O'Reilly and a variety of other batteries are all made by EastPenn here in the USA. Braille offers some fancy cases, but otherwise is the same as the other brands, at twice the price.

San
 

Attachments

·
Registered
Joined
·
239 Posts
Discussion Starter #9
Either of these should work, right?

[ame]https://www.amazon.com/Deka-Power-Sports-ETX20L-Battery/dp/B0026H3CB4[/ame]


[ame]https://www.amazon.com/East-Penn-Deka-ETX30L-ETX-30L/dp/B004XQME74/ref=sr_1_15_sspa?keywords=deka+etx30l&qid=1559667047&s=automotive&sr=1-15-spons&psc=1[/ame]
 

·
Acme Super Moderator ** The Enforcer **
Joined
·
7,598 Posts
As long as the size is correct you should be good. I used the ETX18L in my C6 Corvette (6.0 Liter).

https://www.corvetteforum.com/forums/c6-tech-performance/2325984-lightweight-battery-install-pics.html

I would recommend a battery tender if not driven often. Mine was fine for a week or more and the Corvette, like the Elige, has parasitic drains due to the alarm.

I find the ETX20L is 310 CCA at 17 pounds and the ETX30L is 400 CCA at 21.6 pounds (scroll down the page below).

[ame]https://www.amazon.com/East-Penn-Deka-ETX30L-ETX-30L/dp/B004XQME74[/ame]

Chances are you can find one locally under a different name (Deka, Big Crank, Duracell, Napa etc.). Just look for the part number ETX18L, ETX20L, ETX30L etc. They're all made by EastPenn right here in the USA. Even Braille is just a rebadged Deka, sometimes with a fancier case, optimistic CCA ratings and at least twice the price.

San
 

·
Registered
Joined
·
239 Posts
Discussion Starter #11 (Edited)
San,

I have a question about the bracket. I'm gonna call around different local stores today, and hopefully one will have an ETX30L in stock. If none is available, I might get the Optima Yellow Top (very heavy). I checked the dimensions of the ETX30L, and they're very similar, though not exact, to the dead battery currently in my car. So if I need to make a bracket, what thickness of aluminum do you recommend? I do have a vice that I can use to bend. Can I use the hole in the body that the current bracket is fastened to? If I need to drill new holes, any precautions regarding drilling into the fiberglass (?) panels of the car?

Thanks,

BTW, this is what NAPA has in stock.

https://www.napaonline.com/en/p/SBEETX30L
 

·
Registered
Joined
·
239 Posts
Discussion Starter #12
Thanks to all for your information, very helpful.
I ended up getting an ETX30L from NAPA.
Made a ghetto bracket for it, the old battery (InterState) is bigger. I also put double-sided tape between the bracket and the battery. Weight numbers are 21 lbs vs. 29 lbs.










 

·
Registered
Joined
·
16 Posts
My ETX30L battery is showing 13.5V after charging, yet it still doesn't turn over the engine, just click click click. There is no corrosion on the battery and I made sure that the terminals are tight.
 

·
Acme Super Moderator ** The Enforcer **
Joined
·
7,598 Posts
My ETX30L battery is showing 13.5V after charging, yet it still doesn't turn over the engine, just click click click. There is no corrosion on the battery and I made sure that the terminals are tight.
A voltage check without a load is useless. Take the battery to AutoZone/whatever local automotive shop you have. They can test the battery to give you a definitive answer as to whether it's good or not.

San
 
1 - 14 of 14 Posts
Top