997Texas

How long should a OEM Porsche wall plug in battery tender last? I've only had mine for 2 maybe 3 years and when I go back to my car the monitor on it isn't showing full charge, it's just blank. It doesn't appear to be properly working anymore.

Ironman88

My Porsche Charge-O-Mat is 17 years old and still works like new.

anthony42hat

Mine is at least 10 yo and still going strong.

rileyracing1

Electronics - mass produced - Can last decades or pooch out in a few months ..... Just like everything else electronic. The good thing is in general electronic items have a very low failure rate when compared to other products.

Save your money and just go buy a Battery Tender - They work great and most cost less than $75.00 ,, The Porsche ones are wayyy overpriced.

Petza914

Been using Battery Tender brand for years. They seem to last a long time. Have some of their single units and quite a few of their dual bank units. They make units up to 4 bank with separate charging circuitry for each bank all in a single unit. Have one permanently installed in my wake boat and even with all the wave impacts, still working after 8-10 years.

Tj40

Like RileyRacing says electronics tend to have a bathtub failure rate curve - high to begin with as defects from manufacturing manifest themselves, dropping to a very low number that then slowly increases over time as longer term effects cause failures.


Sucks when failures happen but that's the luck of the draw - plenty of good ones out there at reasonable prices as people have mentioned. I have a CTek and I hear good things about Noco as well.

IrishWhiskey

My CTek is 6 years old.

groovzilla

CTEK is amazing and mine has lasted 8 years so far.
They doubled in price over past 3 years but still would be my #1 choice.

DesmoSD

My OEM battery had a manufacture date of 2012 and died in 2021 with it being on a tender when parked.

Petza914

AWeeome. The one I changed in my 914 a couple years ago was 12 years old and I get 6-8 years out of the AGMs in the 997s.

speedracerf4i

I bought my Schumacher battery maintainer for $20 at walmart 7 years ago and it works perfectly. Now it's $27, but still a bargain. My last battery lasted 9 years whilst on battery maintainer.

DesmoSD

That's a really good life span on both of those batteries. Tenders definitely hold their value.

jayzbird

I didn’t realize until I put an antigravity battery tracker on my car that my old Griots tender wasn’t doing anything. Still lit up like everything was ok but no charge. Unfortunately few of these have any gauges to indicate current being delivered so we are left to trust the idiot light.

Have since added one of these things that tracks the voltage and cumulative Ah added.

lexhair

I had to replace my Porsche branded tender under warranty. Thank you, Suncoast Parts.

rileyracing1

I had one Battery Tenders 4A units malfunction on me I purchased last year not because it failed electronically (shorted out) It failed due to where the power cable goes into the battery tender housing , the cable split. Most likely from picking it up from the cables and not the housing itself .

Battery Tender was great though they sent me another one N/C .