Battery-tender question .....

[mjbuck]

250 inches average yearly snowfall and tons upon tons of road salt on the roadways here in the Upper Peninsula of Michigan. Time for winter storage for my Genesis. Does anybody else use a battery tender? My question is this . Should the tender be connected to the battery terminals in the trunk or the two terminals under the hood?

 

[5 Timer]

I connect mine to the battery terminals in the trunk

 

[Mark_888]

I can't imagine any problem whatsoever with using the terminals under the hood. That's what they are there for. I have not used a battery "tender" per se, but I have recharged a dead battery with a battery charger for about 4 hours using the terminals in engine area under the hood.

 

[TEF]

I store my 350Z every winter and with a Black and Decker "Battery Maintainer" (from Amazon) that is connected directly to the battery. I use an (2-pole flat) extension between the charger and battery so the the lead extends well beyond the battery and it's possible to close the hood with the charger connected. A similar similar extension could be used with the trunk-mounted battery of the Genesis. In any event, I usually store the car with its battery fully charged and then connect it to the charger. When the car is removed each Spring, it's apparent the the battery held its charge during the five months of storage. During the summer, the extension is coiled up next the battery.

 

[CanukV6]

I can't imagine any problem whatsoever with using the terminals under the hood. That's what they are there for. I have not used a battery "tender" per se, but I have recharged a dead battery with a battery charger for about 4 hours using the terminals in engine area under the hood.

I agree, use the terminals under the hood to connect your Battery Tender.
Its not so important with today's sealed and vented batteries, but all batteries give off Hydrogen Gas during charging and if you connect the charger directly to the battery terminals there is the chance of a spark when you disconnect which maybe not the best thing in a hydrogen-rich environment.
Correct practice for on-battery charging is to connect the Positive+ terminal to the battery and the Negative- terminal to a ground point near the battery on the vehicle. Then when charged, you remove the negative connection first, away from the battery, and then remove the positive connection, eliminating the chance of a spark close to the venting battery.