Expected Life Span of EZGO Batteries.

[MooreGo]

Great idea, Doug! What equipment is needed? I have multitesters, or, do I need that load tester you mentioned earlier? How does one go about doing this test?

[dougmcp]

You only need a digital voltmeter for testing and you don't have to disconnect anything.
Put the charger on, it will probably be charging in the 15-20amp range, as the amperage drops the voltage on the batteries starts to increase.
Check each battery every hour or two as it is charging and note the voltages.
Usually the weakest battery charges with the most voltage.
At the beginning your batteries will probably be charging at 38v-40v (each one at about 6.6v).
Near the end, which could take 8 hours, it should be in the 44v-46v range (each one at about 7.3v-7.6v).
Let the charger finish and shut off automatically and let it sit overnight then measure the voltages again.
The individual battery voltages should be in the 6.37v range.

Here is a SOC chart to help determine where they are in health:

[MooreGo]

Gee whiz, Doug, thanx for the table and the test procedure. I printed the whole thing out for present and future reference. I put it in one of those plastic slip covers and will keep it with my EZGO.

[JohnnieB]

When you get your new batteries:
1. Charge them fully prior to first use.
Even if the vendor assures you they are fully charged, put them on charge.
Note: The first charge cycle will take a long time (12-16 hours or more) and a lot of gassing will occur, so keep an eye on electrolyte level during charge.

2. Wet Cell Deep Cycle Batteries only have about 75% storage capacity (run time) when new.
They must be "Matured" to reach 100% storage capacity.
ScottyB has the proper break-in procedure spelled out on his website http://www.cartsunlimited.net/
Sounds like you already know how to take care of batteries since you got 5 years out of your old set, but just in case you're overlooking something, read everything he's got on batteries.
Lots of good info.

[dougmcp]

The definitive source for battery info is from Trojan, here is a link to their battery user's guide: http://www.trojanbattery.com/pdf/TRJ...UsersGuide.pdf

[MooreGo]

Originally Posted by JohnnieB

When you get your new batteries:
1. Charge them fully prior to first use.
Even if the vendor assures you they are fully charged, put them on charge.
Note: The first charge cycle will take a long time (12-16 hours or more) and a lot of gassing will occur, so keep an eye on electrolyte level during charge.

2. Wet Cell Deep Cycle Batteries only have about 75% storage capacity (run time) when new.
They must be "Matured" to reach 100% storage capacity.
ScottyB has the proper break-in procedure spelled out on his website http://www.cartsunlimited.net/
Sounds like you already know how to take care of batteries since you got 5 years out of your old set, but just in case you're overlooking something, read everything he's got on batteries.
Lots of good info.

Thanx for the good tips, and, the web site link, Johnnie.

[MooreGo]

Originally Posted by dougmcp

The definitive source for battery info is from Trojan, here is a link to their battery user's guide: http://www.trojanbattery.com/pdf/TRJ...UsersGuide.pdf

Thanx, Doug. Much appreciated.