Suggestions for Battery Tender - ZR-1 Net Registry Forums

PhillipsLT5 · 01-04-2015

Seller/Make/Model # ??

8cam · 01-04-2015

I have a Schumacher 1.5 amp in the 308, works very well.

Billy Mild · 01-04-2015

I use the Harbor Freight one. It works fine for float charger or as a true tender. Its not meant to bring a battery back to life.

PhillipsLT5 · 01-04-2015

I am trying to keep it charged for 1 or 2 months

Karl · 01-04-2015

I use a battery tender jr from O'Reilly auto parts.

http://www.oreillyauto.com/site/c/de...0360&ppt=C0005

Billy Mild · 01-04-2015

The one from Harbor Freight battery tender would suffice. I use mine for motorcycle batteries and old car batteries. I haven't had any issues. If the battery is below 11 volts you need something different. For maintaining and slight recharging they are fine.

If the battery is sulfated then look for a Battery Minder or CTek charger.

JimZRyd · 01-05-2015

Battery Tender plus here. Picked it up at the museum. Has worked great for years!

edram454 · 01-05-2015

battery tender plus can be picked up on ebay for 34 bucks shipped. always have my zr1 on it and my scooter also. Your battery will last forever, or it will seem like it.

ed ramos #3028

Paul Workman · 01-05-2015

For maintenance:

I have the original "smart" charger; the Battery Tender(s) on all but one car. The battery on my wife's 69 C3 has been on the BT for 9 years, come spring, and it still cranks that 11:1 compression L46 like new. These chargers are 800 mA for the single chargers to 1.5 A for the dual output charger (one).

For charging:

For actual charging, I've had an inexpensive, automatic, Black and Decker (smart) charger for over 12 years. It can be configured for several types of batteries (wet, gel, etc) and max charge rates from 4, 10, 20, & 40 amperes, as well as several other battery conditioning modes as well: a decent unit for home/hobby use. It too is a smart charger, in that it will monitor and shut off when the battery is at full charge. And, it will periodically turn on to keep the battery topped off and prevent sulfating. (Also has a de-sulfating mode, if the battery is in such condition to require more than just preventative maintenance.)

For "dead" batteries:

I've had good success reviving batteries that appear to be totally dead, due to leaving the lights on (or the like), by using the old fashioned "dumb" charger: nothing automatic about it. Once the battery takes on enough of a charge to satisfy the threshold level, then the automatic chargers will recognize that fact and take over.

WARP TEN · 01-05-2015

I would suggest getting a float charger from the National Corvette Museum store. That is what I did. It is more expensive than the auto chain stores but you are supporting a great Corvette institution in the process. --Bob

01-04-2015	#1
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Suggestions for Battery Tender Seller/Make/Model # ??

01-04-2015	#2
8cam Join Date: Jul 2013 Location: Atlanta Posts: 451	Re: Suggestions for Battery Tender I have a Schumacher 1.5 amp in the 308, works very well. __________________ Mark '90 ZR-1 #1322 Daily Driver, 64k and counting Black/Gray [IMG]http://i208.photobucket.com/albums/bb49/mlitherland/IMG_0326_zps3d50d8cb.jpg[/IMG]

01-04-2015	#4
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Re: Suggestions for Battery Tender I am trying to keep it charged for 1 or 2 months

01-04-2015	#5
Karl Join Date: May 2013 Location: Chicago Posts: 980	Re: Suggestions for Battery Tender I use a battery tender jr from O'Reilly auto parts. http://www.oreillyauto.com/site/c/de...0360&ppt=C0005 __________________ 1993 ZR-1 #211 Yellow On Beige Beast #2 1992 ZR-1 #427 Black On Black Sold 1985 L98 Blue On Blue Sold

01-04-2015	#6
Billy Mild Join Date: Aug 2014 Location: Kansas City, MO Posts: 838	Re: Suggestions for Battery Tender The one from Harbor Freight battery tender would suffice. I use mine for motorcycle batteries and old car batteries. I haven't had any issues. If the battery is below 11 volts you need something different. For maintaining and slight recharging they are fine. If the battery is sulfated then look for a Battery Minder or CTek charger. __________________ Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration

01-05-2015	#7
JimZRyd Join Date: Jan 2012 Location: Florence, SC Posts: 1,343	Re: Suggestions for Battery Tender Battery Tender plus here. Picked it up at the museum. Has worked great for years! __________________ Jim Zorgias 1994 ZR-1 Admiral Blue/Black #245 1996 Callaway Supernatural 450 1990 Callaway Supernatural 490 / CR-1 #7

01-05-2015	#8
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: Suggestions for Battery Tender battery tender plus can be picked up on ebay for 34 bucks shipped. always have my zr1 on it and my scooter also. Your battery will last forever, or it will seem like it. ed ramos #3028 __________________ EDRAM454 1990 #3028..siamese ported plen/hous/SGC/fidanza/DRM LTHeaders/DRM roll cage/camber rod/drilled slot rotors hawk track pads/grand sport calipers/full corsa exhaust/Hurst/NO cats/custom SGC chip/cbeamplate/315's on all 4/intake water plugged/smog removed..RC injectors/LED lights..SHOULD NOT HAVE PUT ALL THE MONEY IN IT.. SOLD.

01-05-2015	#9
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Suggestions for Battery Tender For maintenance: I have the original "smart" charger; the Battery Tender(s) on all but one car. The battery on my wife's 69 C3 has been on the BT for 9 years, come spring, and it still cranks that 11:1 compression L46 like new. These chargers are 800 mA for the single chargers to 1.5 A for the dual output charger (one). For charging: For actual charging, I've had an inexpensive, automatic, *Black and Decker* (smart) charger for over 12 years. It can be configured for several types of batteries (wet, gel, etc) and max charge rates from 4, 10, 20, & 40 amperes, as well as several other battery conditioning modes as well: a decent unit for home/hobby use. It too is a smart charger, in that it will monitor and shut off when the battery is at full charge. And, it will periodically turn on to keep the battery topped off and prevent sulfating. (Also has a de-sulfating mode, if the battery is in such condition to require more than just preventative maintenance.) For "dead" batteries: I've had good success reviving batteries that appear to be totally dead, due to leaving the lights on (or the like), by using the old fashioned "dumb" charger: nothing automatic about it. Once the battery takes on enough of a charge to satisfy the threshold level, then the automatic chargers will recognize that fact and take over. __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

01-05-2015	#10
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,094	Re: Suggestions for Battery Tender I would suggest getting a float charger from the National Corvette Museum store. That is what I did. It is more expensive than the auto chain stores but you are supporting a great Corvette institution in the process. --Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"