Battery Tender Connection?
Racer
Joined: Dec 2002
Posts: 402
Likes: 0
From: Goose Creek SC
Do you have the instructions with the unit? Mine said to (1) put the red clamp to the + terminal, (2) the black clamp to a ground, (3) then plug it in. Perfectly safe. Mine stays hooked up that way Monday through Friday - never a problem.
Safety Car
Joined: Feb 2004
Posts: 3,802
Likes: 0
From: monroeville pa
St. Jude Donor '04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by MagRedSkull
Is it safe to connect the Battery Tender to battery for charging while the battery is still connected to the car? 
Drifting
Joined: Oct 2002
Posts: 1,710
Likes: 0
From: Langhorne PA
Fasten the other electrical connectors to the battery bolts, this way you just plug the BT into the plug every winter. Clamps might fall off during a long winter. During the driving season, just push the plug beside the Fuse/relay center. 
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Race Director
Joined: Jan 2002
Posts: 19,557
Likes: 1,470
From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Originally Posted by csexton
Yes, put the red clip on the positive terminal and the black on the neg. and fire that puppy up!!
Safety Car
Joined: Feb 2004
Posts: 4,208
Likes: 2
From: Rochester MN
CI 5-6-7-8 Veteran
St. Jude Donor '04-'05-'06-'07
NCM Ambassador
Yes, but I want to be sure that you don't expect it to charge the battery it is for maintaining a charge more than charging. If your battery is low then use a charger...
Thread Starter
Pro
Joined: Jun 2001
Posts: 652
Likes: 0
From: Bellflower CA
Originally Posted by ptdrummer54
Yes, but I want to be sure that you don't expect it to charge the battery it is for maintaining a charge more than charging. If your battery is low then use a charger...
Safety Car
Joined: Feb 2004
Posts: 3,802
Likes: 0
From: monroeville pa
St. Jude Donor '04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by MagRedSkull
I disagree. The instructions are titled "Battery Tender Plus Battery Chargers". The instructions specifically discuss operating in 3 primary charges modes of bulk mode (full charge power 0% to 75% charged), the absorption mode (75% to 100% charged), or the storage/float maintenance mode (100% to 103%).
Safety Car
Joined: Feb 2004
Posts: 4,208
Likes: 2
From: Rochester MN
CI 5-6-7-8 Veteran
St. Jude Donor '04-'05-'06-'07
NCM Ambassador
Originally Posted by MagRedSkull
I disagree. The instructions are titled "Battery Tender Plus Battery Chargers". The instructions specifically discuss operating in 3 primary charges modes of bulk mode (full charge power 0% to 75% charged), the absorption mode (75% to 100% charged), or the storage/float maintenance mode (100% to 103%).
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
I have a "Battery Tender Plus" for my 99' coupe. I tried to install the ring terminals, but they were too small to slip over the battery lug bolts. I call the manufacturer, and they said it was ok to cut off the factory rings and install larger ones so that I could use the ring terminal connection as opposed to the clamp connectors. This has worked well for me. The car stays on the tender for weeks at a time and I have not seen any problems.
