Load test on batteries

Godfather1960 · 08-07-2020, 04:48 PM

I have done a load test on my trojan t875 8 volt batteries and came up with 7.6-7.8 and after that i used my meter to see what state they are in and all read 10.81-10.89 ..looks like they are very good your thoughts. .this was after i charged them last night This cart i bought was a refurbished silver standard precedent done in 2016 and are the same batteries the lady i bought it from really never used it and the tires still have the whiskers on them.

Hkspwrsche · 08-07-2020, 06:58 PM

Quote:

Originally Posted by Godfather1960

I have done a load test on my trojan t875 8 volt batteries and came up with 7.6-7.8 and after that i used my meter to see what state they are in and all read 10.81-10.89 ..looks like they are very good your thoughts. .this was after i charged them last night This cart i bought was a refurbished silver standard precedent done in 2016 and are the same batteries the lady i bought it from really never used it and the tires still have the whiskers on them.

So without a load the whole battery pack shows 64.8v? Did I misunderstand?

Godfather1960 · 08-07-2020, 07:25 PM

Quote:

Originally Posted by Hkspwrsche

So without a load the whole battery pack shows 64.8v? Did I misunderstand?

I tested each battery separate

Godfather1960 · 08-07-2020, 07:29 PM

i just tested the pack @65.8

ThreeCW · 08-07-2020, 11:06 PM

A 48 volt pack will charge at up to 65 volts during the finish charge portion of the charging cycle.

If you are not charging and are reading a 65 volt pack voltage, you will want to confirm the accuracy of your multimeter. Ensure you are on the correct scale, check to make sure the battery in the meter is not depleted, check the calibration of your meter against a known voltage (a fresh 9 volt battery or your car battery) and use another meter to confirm the accuracy of your meter reading.

There have been a number of BGW members who have reported erroneous voltages because of meter problems.

Godfather1960 · 08-08-2020, 03:50 AM

Quote:

Originally Posted by ThreeCW

A 48 volt pack will charge at up to 65 volts during the finish charge portion of the charging cycle.

If you are not charging and are reading a 65 volt pack voltage, you will want to confirm the accuracy of your multimeter. Ensure you are on the correct scale, check to make sure the battery in the meter is not depleted, check the calibration of your meter against a known voltage (a fresh 9 volt battery or your car battery) and use another meter to confirm the accuracy of your meter reading.

There have been a number of BGW members who have reported erroneous voltages because of meter problems.

I will test it with a 9 volt battery good point thanks

08-08-2020, 08:03 AM

Quote:

Originally Posted by Godfather1960

I will test it with a 9 volt battery good point thanks

Replace the battery in your multimeter.

Godfather1960 · 08-08-2020, 09:53 AM

Quote:

Originally Posted by 1sharphook

Replace the battery in your multimeter.

Thanks i replaced the batt now reading 8.4 -8.4.1 each batt then tested the pack at 50.4

Godfather1960 · 08-08-2020, 11:11 AM

so the batteries look good for 4 years old sitting most of their life your thoughts

Godfather1960 · 08-08-2020, 02:45 PM

Drives great no battery light flashing how long can the Trojan t-875 last.

08-07-2020, 04:48 PM	#1
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213	Load test on batteries I have done a load test on my trojan t875 8 volt batteries and came up with 7.6-7.8 and after that i used my meter to see what state they are in and all read 10.81-10.89 ..looks like they are very good your thoughts. .this was after i charged them last night This cart i bought was a refurbished silver standard precedent done in 2016 and are the same batteries the lady i bought it from really never used it and the tires still have the whiskers on them.
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213

08-07-2020, 07:29 PM	#4
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213	Re: Load test on batteries i just tested the pack @65.8
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213

08-07-2020, 11:06 PM	#5
ThreeCW Gone Wild Join Date: Nov 2016 Location: near Calgary, AB, Canada Posts: 1,516	Re: Load test on batteries A 48 volt pack will charge at up to 65 volts during the finish charge portion of the charging cycle. If you are not charging and are reading a 65 volt pack voltage, you will want to confirm the accuracy of your multimeter. Ensure you are on the correct scale, check to make sure the battery in the meter is not depleted, check the calibration of your meter against a known voltage (a fresh 9 volt battery or your car battery) and use another meter to confirm the accuracy of your meter reading. There have been a number of BGW members who have reported erroneous voltages because of meter problems.

08-08-2020, 11:11 AM	#9
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213	Re: Load test on batteries so the batteries look good for 4 years old sitting most of their life your thoughts
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213

08-08-2020, 02:45 PM	#10
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213	Re: Load test on batteries Drives great no battery light flashing how long can the Trojan t-875 last.
Godfather1960 Gone Wild Join Date: Aug 2017 Posts: 213

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