Best Way to hook up a battery tender?

[mgr1001]

I'm sure subject has been covered ad nauseam in these forums, but I need to ask again about the best way to connect a battery tender to my 2024 hybrid. The problem is there's so much information, some of it conflicting, I don't know who to listen to.

At first glance, it appears that there are two ways to connect a battery tender. One is directly to the battery terminals under the rear seat, and the second is to jumper posts under the hood.

My question, is there any functional difference between the two?

For several reasons, I would prefer to use the under hood terminals. Mainly, this will allow for a much easier connection process when the truck is in the garage.

Thoughts please?

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[matmondro]

There is no functional difference between them. The ones under the hood are just more convenient to access.

 

[SafetyGuy]

I'm sure subject has been covered ad nauseam in these forums, but I need to ask again about the best way to connect a battery tender to my 2024 hybrid. The problem is there's so much information, some of it conflicting, I don't know who to listen to.

At first glance, it appears that there are two ways to connect a battery tender. One is directly to the battery terminals under the rear seat, and the second is to jumper posts under the hood.

My question, is there any functional difference between the two?

For several reasons, I would prefer to use the under hood terminals. Mainly, this will allow for a much easier connection process when the truck is in the garage.

Thoughts please?

I completely agree with the previous post, I also feel there is no difference for you to use for your smart charger. Under the hood is my go to connection point, every time.

I have metered the 12 volt battery voltage at both points (directly at the battery as well as at the connection points under the hood, and I found there is no difference in the metered value.

Explanation why I metered both, and did it one right after the other.

There's no drop in the metered value, so a sufficiently large diameter cable connects the boost points to the battery has been utilized.

This is great, as there is no line voltage drop (between the two points), due to an insufficiently sized wire.

Cheers

Andy

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