Battery Tender?

ameeriklane · Mar 4, 2024

Now that it looks like people wil be taking delivery of Emiras imminently, does anyone know which battery tender will work best?

I've used Battery Tender products for years, incluidng on my Elise. It looks like they now offer specific options based on battery type. Anyone know which would be the right one to choose?

On my Elise, I can plug it into the cigarette lighter as that stays powered even when the car is off. I'm guessing on the Emira, this isn't the case?

Time2Fly · Mar 4, 2024

Start here. CTEK seems to be the way to go.

Fitting a battery conditioner... Do's and Don'ts

Battery conditioner fitted... and it's thrown up an error Light on dash! 2nd mod fitted ;-) if you can call it that! I'm claiming it! I fitted a CTEK battery charger today . It needed M8 sized connectors to connect to the battery - which i had. I added some additional duct tape to the cable...

www.emiraforum.com

scarzie · Mar 4, 2024

I know mine is coming with a lotus branded charger, I was under the impression all FEs were

Eagle7 · Mar 4, 2024

I believe Lotus is including one with our cars.

Time2Fly · Mar 4, 2024

Eagle7 said:
Since I got an Antigravity Lithium Ion battery, I got this one from CTEK. If you get a Lithium battery, you need a tender compatible with them.

CTEK 56-926 LITHIUM US | Fu...

Same and same

digilotus · Mar 5, 2024

I use a CTEK MXS 5.0 on several of my cars (non-lithium batteries). Never failed or skipped a beat. I also leave them on for months at a time just trickle charging without issue. Many sports car manufacturers sell re-badged CTEK chargers too.

ameeriklane · Mar 5, 2024

I didn't realize it comes with a tender already. Look at all the value we get with the FE!

Battery Tender has Lotus listed as one of their Partners on their website, but maybe it's from a tender they did for a previous model, if CTEK is doing it now.

robrmon · Mar 5, 2024

I’ll probably still use the CTEK one because my factory one on my evora let me down a bunch of years ago. The CTEK has warning lights to let you know if something isn’t right.

And to expand, when I said, let me down, this involved CEL warning lights, and a very expensive tow…

Aero · Mar 5, 2024

My car is definitely coming with one. Lotus may change that though once they aren't having their cars sitting waiting for CARB.
I was planning using a CTEK before getting a Lotus one as I've used that for years. Its what Porsche sells as their branded charger for 3X what you can buy elsewhere.

CHEESE · Mar 5, 2024

The question is whether CTEK is better than the Lotus-provided charger such that those of us who already use CTEK should use them on the Emira.

scc.131.fe · Mar 9, 2024

To the lucky few with their North America Emiras: can we get a pic already of the Lotus battery charger and how it connects to the car? Much appreciated!

Aero · Mar 18, 2024

scc.131.fe said:
To the lucky few with their North America Emiras: can we get a pic already of the Lotus battery charger and how it connects to the car? Much appreciated!

I decided to go with the CTEK actually now after trying to figure out where to park the Emira and need extension which I already have. I want to be able to plug it in where I currently have another one installed (upstairs garage too).
Did everyone get a Lotus one so far with their cars?

Here's a pic of it. I plan to sell it now....You cant see the eye leads that are included as well.

scc.131.fe · Mar 18, 2024

Aero said:
... and the Lotus (Deltran brand)

Thanks, and so do the eye leads (terminal lugs) have a quick disconnect to the main charger harness, in which case it would be easy to leave them installed on the battery posts and just coil& stow behind the battery cover when not in use?

Does anyone have a Deltran part number for the equivalent charger without Lotus branding?

thanks again for the pic, @Aero !

Time2Fly · Mar 18, 2024

scc.131.fe said:
Thanks, and so do the eye leads (terminal lugs) have a quick disconnect to the main charger harness, in which case it would be easy to leave them installed on the battery posts and just coil& stow behind the battery cover when not in use?

Does anyone have a Deltran part number for the equivalent charger without Lotus branding?

thanks again for the pic, @Aero !

Looks like this one

Battery Tender 4 AMP Car Battery Charger and Maintainer | eBay

Find many great new & used options and get the best deals for Battery Tender 4 AMP Car Battery Charger and Maintainer at the best online prices at eBay! Free shipping for many products!

www.ebay.com

It's lithium selectable as well for anyone who wants to swap labels with the one that comes with your car and have a Lotus branded charger.

Deltran Power Tender 4 Amp Lithium Selectable Charger The Visor Shop.com

Deltran Power Tender 4 Amp Lithium Selectable Charger The Battery Tender® 4 Amp Power Tender Selectable 12 or 6 volt options as well as battery type selection has you covered. It's lightweight, compact, and fully automatic; very easy to use, e .... $119.03.Free P & P Available.

www.thevisorshop.com

scc.131.fe · Mar 18, 2024

I'm guessing this is the equivalent..

Battery Tender

Aero · Mar 18, 2024

scc.131.fe said:
Thanks, and so do the eye leads (terminal lugs) have a quick disconnect to the main charger harness, in which case it would be easy to leave them installed on the battery posts and just coil& stow behind the battery cover when not in use?

Does anyone have a Deltran part number for the equivalent charger without Lotus branding?

thanks again for the pic, @Aero !

The eyelet lead connection wires are removeable and disconnect like most battery chargers. Can hardwire directly into terminals then have a short pigtail to connect to.

see post 59: lotus leads similar.

Fitting a battery conditioner... Do's and Don'ts

So Lotus said to come see the dealer - which I ignored! I made sure the car was off for 30 mins. I then disconnected the negative battery again - left it off for a minute. Then I reconnected the negative battery terminal - however in the process the small electrical connector to the BMS was...

www.emiraforum.com

skydude · Mar 20, 2024

I'll snap a pic shortly.
Basically they leave a little pigtail by the battery where the charger connects. They also showed how to close the trunk latch before the trunk is closed to prevent pinching the wire. You can still lock the car while the charger is connected.

Stewart · Mar 20, 2024

skydude said:
I'll snap a pic shortly.
Basically they leave a little pigtail by the battery where the charger connects. They also showed how to close the trunk latch before the trunk is closed to prevent pinching the wire. You can still lock the car while the charger is connected.

Could you please do you best to describe how to close the trunk without pinching the wire?

Bilbao-Emira · Mar 20, 2024

Stewart said:
Could you please do you best to describe how to close the trunk without pinching the wire?

With love !

skydude · Mar 20, 2024

Stewart said:
Could you please do you best to describe how to close the trunk without pinching the wire?

What they did at the dealership was this: Using a finger or screwdriver, push down on the latch as if the trunk was closing. This will close the latch, preventing the trunk from closing completely. This leaves enough room for the wire while it appears that the trunk is closed. They had to do this as my dealer had 20+ Emiras sitting, waiting for CARB approval.

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