Replacement 12v battery

[ArthurUK]

Swapping the Lead Acid Auxiliary Battery for any kind of Lithium Cell(s) Battery is the issue.
The dedicated charging system for the auxiliary Battery is designed for Lead Acid.
Its unlikely Mitsubishi would approve this change, so the warranty would be void.

Whatever flavour of Lithium Battery is safer is not relevant.

 

[yardbird]

I had extended warranty till 90K and had no problem in obtaining warranty services at all. e.g. got the following warranty services as such.
1. The whole front axle was replaced by dealer for one leaking boot.
2. The front suspension system was replaced due to bad shock & broken dust boots replaced by third party paid for by the warranty service company.

Mitsubishi extended warranty never questioned the lithium battery at all. My 2018 PHEV is now over 92K miles. LiFePo4 12v battery in my PHEV has a built-in BMS chip inside to regulate any overcharging from the main battery pack. Other than the 10-12 EV miles, Happy camper!

 

[HHL]

The Outlander charging circuit will be designed for Lead acid, the charging V/I profile is very different to Lithium.
Plenty of advice on Google, this explains the difference:
https://enerdrive.com.au/2024/07/24/can-i-charge-my-lithium-battery-with-a-lead-acid-charger/?
You run the risk of it catching fire.

It seems to be simply a constant voltage charger, it is not current limited to what the specification on the original yuasa battery recommends. No fancy profile there..

 

[murlandphev]

Wanted to thank this thread for helping me change my 12-volt battery from the Yuasa S46B24L(S) to an Optima D51R AGM on my 2018 SEL. It's been installed for about 2 days now and fit just fine. I'm here in the US and that original battery was near impossible to find.

Two words of caution

1. The reason my original battery died was because I had a dash cam installed and for about 2-3 weeks, I did not drive my 2018 leading to what I surmise slowly drained the battery and in cold weather killed it. I attempted to trickle charge the dead battery to no avail. Therefore I will be disconnecting my dash cam whenever I leave my car idle for long periods or leave the car plugged to the wall charger.
2. If you are in the US, avoid purchasing anything from www.sparkswarehouse.com. I should have researched it more but I was desperate to find an original S46B24L(S) and they seemed to be the only game in town with a express delivery. After the original online purchase two weeks ago, no status updates, no tracking number and no responses to calls and emails from me. I hope they get in touch with me soon but it may be the dead battery cost me much more than just a single replacement.

Link to Optima battery
https://www.amazon.com/dp/B0013ZGZ9Q?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

 

[AndyInOz]

Re dash cams...

A good installer should have warned you about that risk.

Mine did, and recommended that I run the camera off a separate (supplied) lithium ion battery, when the car is powered down.

That battery only charges when the car is 'on' so I'm not running down the car's 12V.

 

[HeliNurse]

Andy, 'please explain'

 

[AndyInOz]

OK...

I guess you're after more details?

I have a Blackview set of dashcams. (Front and rear.)

They are connected to a Blackview lithium ion battery, that is installed under the passenger seat. (About the size of a cigar box.)

That battery is connected to the vehicle power, via a fuse that is only 'on' when the vehicle is 'on'.

When I park the car, the vehicle power is 'off', but the cameras keep running, in 'parking mode'* until the Blackview battery is low. Once that battery is low, the cameras turn off.

This means that the cameras are not draining the car's 12V battery, because they are not connected to the car's power when the car is turned off.

Hence, they can't flatten the car's 12V battery.

This solution is recommended for cars like ours, because our 12V battery is so small, something like a camera could easily flatten the battery.


* I think parking mode means that recording is only saved if the camera registers an impact, but I'm not 100% on that. This probably uses less power than continuous recording, but, I'm guessing this part.

Some links:

Blackvue Power Magic Ultra Battery B-130X
https://www.blackvue.com.au/accessories/blackvue-b-130x/

Blackvue DR970X-2CH Plus
https://www.blackvue.com.au/dash-cams/dr970x-2ch-plus/