Bad 'tender', or WHAT???


For $25-50 I didnt expect much from these tenders....they appear to have the technology of a calculator

The CTEK appears to be a step above.

If you are using a gel cel you have to use the CTek. The tender will not work with all tyes of batteries.
 
Any more than one bottle.:lol


The voice of experience speaks!:smash
 
Any more than one bottle.:lol


:rofl:rofl:rofl :thumbsup
 
Correct - it should be tested when connected to the load. I wouldn't want to see more than 0.01%, which would be about 1 millivolt (rms) or ~3 mv (p-p).

Pretty tight specs. I would guess this is not the case, but will test it and post the results.
 
 
If you are using a gel cel you have to use the CTek. The tender will not work with all tyes of batteries.

While the CTek may be a fine alternative, the Battery Tenders explicitly support gel cell batteries.
 
Another Tender goes bad!

One of my battery tender Jr. went bad. I was concerned that my battery is going bad since the tender's green LED wasn't lighting up as quickly as before. It used to go green within 1 to 2 days, but now as taking 4 to 5 days. I checked the battery voltage and it seem OK. So I used another tender and it went green less than an hour. Plug in the bad one again, hours later still red. I guess I can give my bad one to EP, he can use it on one of the many cars he doesn't drive. A dead battery wouldn't make any difference to EP.
 
Deltran's response to my problem posted earlier regarding my Tender Jr.

"The Battery Tender can take a few hours to get back to the fully chargedstate even if the battery is full, this is because the unit still has to gothru all of the 4 stages of charging again. "
 
My take is its false savings...

You buy a Battery Tender for $35...it lets your Optima die 3 times in 2yrs, till you have to get a new Optima at $125, plus another Tender for $35,+ tow, ship, and/or aggravation

vs.

You buy A CTEK for $100 and keep your Optima for 5 years, and know 100% where your battery float stats/specs are.
 
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