Battery Tender-Safe to Leave On?

Reply Subscribe

Thread Tools

Search this Thread

12-21-2009, 06:12 PM

#16

Alan

Electron Wrangler
Lifetime Rennlist
Member

Join Date: Mar 2002

Location: Phoenix AZ

Posts: 13,371

Likes: 37

Received 397 Likes on 272 Posts

Quote:

Originally Posted by j.kenzie@sbcglobal.net

My Schumacher tender says not to leave unit connected to battery when not plugged into 120V ac. This is a different question, but why do you suppose they give that warning. It would be convenient to tuck the tender into the trunk and just leave the plug accessible.

I have a Schumacher too - their guidelines are stupid.... The output stage is non conducting when off - I know because I tested it (no leakage at all). Mine has been connected to my battery permanently for the last 5 years - it causes absolutely no issues (it would quite be stupid if it did right? e.g. consider if your power went out or the circuit breaker tripped...)

Alan

Reply Like

12-21-2009, 06:28 PM

#17

jpitman2

Rennlist Member

Join Date: Dec 2002

Location: Australia

Posts: 5,281

Likes: 17

Received 48 Likes on 45 Posts

I have had a trickle charger(1.6A max) on my garage queen for years. First battery lasted 6 years with this treatment so I doubt its done any harm. We dont get very cold here 5-40C/41-105F. Connect it after a run, red light lasts 4-6 hours before going green.
jp 83 Euro S AT 52k

Reply Like

Reply Subscribe