Going to install a new 12v bat

Optima told me how to fix weak optima batterys

Many battery chargers have very basic and outdated charging parameters that prevent them from delivering current to any battery, if it doesn't register above a minimum voltage level, typically around 10.5 volts. Likewise, any load test performed on a deeply-dischargedbattery will result in a failed test, even if the battery subsequently works fine and functions normally once it is properly-recharged.

To recover a battery using one of these older technology chargers, you can wire a second, fully-charged automotive battery (12V+) to the deeply-discharged battery in parallel (+ to + and – to –). Then hook up the charger to the deeply-discharged battery, setting the charger at 10 amps. Charge for 2 hours, monitoring frequently. When the deeply-discharged battery reaches 10.5 volts or more, remove the second battery and continue charging the deeply-discharged battery until fully recharged- about 12.6-12.8 volts forREDTOP batteries (and the 34M BLUETOP) and about 13.0-13.2 volts for BLUETOP & YELLOWTOP batteries (except the 34M BLUETOP).

Typically, we recommend charging at a relatively low current, such as 2 amps, but when the battery has been deeply-discharged, some sulfation of the battery plates may have occurred. If you charge at a higher rate (up to 10 amps), the higher current will helpto break up this sulfation. If you have an automatic charger, let it run until the charger indicates charging is complete. If you have a manual charger, estimate charging time by multiplying the capacity (amp hours or Ah) of the battery by 1.2 for a rough estimate of charging time in hours.

In most cases these steps will recover a deeply-discharged battery. It’s okay for the deeply-discharged battery to get slightly warm during the charging process, but hot to the touch means there’s a short and the process should be discontinued.

Posted via the PriusChat mobile app.

 

Surely a battery terminal is a mechanical joint that just connects electrically not an electrical bond he would notice if it didn't connect and corrosion won't be a problem. We aren't passing hundreds of amps and I have seen large truck batteries greased up like that and still not had problems.

 

[email protected]
Thank you,
Mary Jo
Optima Customer Service
I copied from there the sent me email and it worked

Posted via the PriusChat mobile app.

 

You obviously have no idea what it means to be "electrically bonded".

 

They put the grease on the terminals AFTER they are tightened down........not before.

 

I agree that is what you should do, I am saying I have seen it done and they got away with it. I remember saying just that to them and the reply I got was they have been doing it like that for years with no problems.He was a master mechanic for a large American Truck rental company I was just an apprentice back then

 

I might not have the correct terminology for where you are but here in "electronics" bonded is soldered welded or chemically bonded, in "power electrics" it is grounding or earthing mechanically, I have qualifications in both

 

Often the reason that doesn't cause a problem is that there is a bolt that is really tight over a really small surface area that ends up carrying most of the load at the battery terminal.

Also if the engine is never started under REALLY hash conditions that requires cranking the starter for a LONG time repeatedly, then a connection that is iffy wouldn't show up.

 

and we don't crank our engines the big battery does that, the 12v is just for booting up the system and lights.

 

Yes, yes I know.
But the discussion has strayed over into power and battery connections in general.
And a poor connection will cause problems under those circumstances too, the symptoms will just be a bit different.