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#1 |
![]() Join Date: Jan 2017
Location: NJ
Posts: 71
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Newbie question here. I just got my 94 zr1 back in February. I just replaced the battery with an odyssey battery and bought and odyssey charger as well to maintain the battery. The directions for the charger say to ground the negative terminal cable. I wasn't sure where to place the terminal and I connected directly to the battery. Is that Ok? I just didn't want to cause any electrical issues.
Thanks for your responses. I look forward to meeting some of you guys at carlisle next month. Dave Sent from my SM-G950U using ZR-1 Net Registry mobile app |
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#2 |
![]() ![]() ![]() Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
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Yes that's OK. Just like the old school days black goes to negative and red goes to positive that's where I attach my Battery tender to as well when needed. GC
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#3 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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That should work fine, or any frame bolt.
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#4 |
![]() Join Date: Jan 2017
Location: NJ
Posts: 71
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Thank you both for your quick responses. I never had an agm battery before and the odyssey charger is way more complex then the basic tender i use on my lawn mower so I just wanted to make sure I wasn't hurting anything. Looks like it already fully charged the battery and is now in maintain mode. Thanks again.
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#5 |
![]() Join Date: Dec 2014
Location: Long Island, NY
Posts: 295
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No, Odyssey & AGM mode chargers put out much higher charge cycles due to these batteries having low resistance. My Odyssey Optimizer (25amp) charging instructions state to disconnect battery from vehicle. The concern is that higher currents can backfeed into the car's older electronics.
Now, have I connected, charged, and gone for a drive without following those directions exactly...well yes, but I just want to point out recommendations that I've read. Deltran Battery Tender is safer, less amperage, but doesn't have conditioning charge capabilities like the $180 Odyssey charger. Best option is usage of Quick Disconnect ($5) that eliminates parasitic draw altogether. I have Odyssey Batteries in everything I own, and the rebranded AGM Die-Hard that Sears disappointingly no longer sells. Worth the money.
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#6 |
![]() Join Date: Jan 2017
Location: NJ
Posts: 71
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Thanks for the info George. I have the 20 amp version. The directions didn't state to disconnect the battery but just not to hook up directly to the n battery terminal. I was unfamiliar with this requirement and so I was confused.
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#7 |
Join Date: Jan 2017
Location: US
Posts: 233
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Buy a cheap battery disconnect and use it when car will be sitting for any length of time. I actually disconnect mine even if it sits over nite.
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#8 | |
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Location: South Dakota/California
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#9 |
![]() ![]() Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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After extensive dealings with lead-acid batteries as part of my profession (in a previous life) I feel some axioms are helpful:
As these (above) apply in the automotive application, these are some other things i find to generally be true as well... Special instructions/recommendations posted by specific battery (type) chargers are focused in order to optimize the performance of a particular charger/battery combination, without interference from external circuits: i.e., circuits which may alter sensor readings and thus interfere with optimum results. The output (voltage and current) characteristics produced by various chargers are constantly varied via inherent design, selected delivery rate, and the state of the battery as it reaches full charge. Hopefully, somewhere in all of this one can find some tools to assess the virtues of various chargers and their practical (charger vs. cut-off switch) decision. ![]()
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#10 |
![]() Join Date: Jul 2010
Location: Woodstock, Ontario, Canada
Posts: 1,275
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You are powering down the ECM everytime you switch off the power. Fueling must be relearned everytime this occurs.
Even with a disconnect, an automotive battery will still discharge. Lead /acid batteries are designed for frequent shallow discharging/charging. Exactly what an often used daily driver will supply. Sulphation occurs anytime a lead/acid isn't 100% charged. A disconnect along with a low current tender is the best option for long term storage. This all gets worse for you guys in the warmer latitudes. What does help the warmer latitude guys is that there typical winter storage is shorter than us Northeners. 5 months is normal up here. Keep em cold and keep em charged. Its not an either or option, use a battery cut off AND use a trickle charger.
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peace Paul ZR-1 Net Registry Member #1494 |
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