Explain it to me like I’m 10

Jordanwadetx

Jordanwadetx

New Member
Hi all, new user here. I need battery help and have zero knowledge about batteries and electric so I’ll do my best here. I have an electric EZ Go TXT with 6 8V batteries connected in series. I just bought the pack brand new 3 months ago and don’t use the cart but once every 2 weeks around my neighborhood with my kids. Instead of overcharging it and killing my batteries like I did previously (water burned off entirely), I left it unplugged (stupid, I know) and now the voltmeter (??) reads ~7.76V for each individual battery. Now when I plug my cart into the big QuiQ charger it tries to charge, then throws a charger error code after a few minutes: battery voltage too low. SO, I need to get my batteries charged… in order to use the charger. 🙃 So I bought an 8v trickle charger off Amazon and hooked it to the first battery in the series. It charged it to ~8.3 and I thought my work was done. Plugged in the big QuiQ charger and same error. Then tested voltage on second battery and realized the trickle charger only charged the one it was hooked to, not the other 5. Big duh. So I trickle charged the second battery to ~8.3 but the first battery had fallen to below 8 again. MY QUESTION: how do I charge these batteries to above 8 so that my big QuiQ will charge again? Can I connect the trickle red clip to pos+ on the first battery and black clip to neg- on the last battery and it’ll charge them all over a few days? Vice versa? Buy 6 trickle charges and charge them all individually at the same time ($$$)? My trickle charge goes up to 24v so maybe I can do 3 at a time? Signed, clueless lady trying to handle this herself. 🙋‍♀️
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Jordanwadetx said:
Hi all, new user here. I need battery help and have zero knowledge about batteries and electric so I’ll do my best here. I have an electric EZ Go TXT with 6 8V batteries connected in series. I just bought the pack brand new 3 months ago and don’t use the cart but once every 2 weeks around my neighborhood with my kids. Instead of overcharging it and killing my batteries like I did previously (water burned off entirely), I left it unplugged (stupid, I know) and now the voltmeter (??) reads ~7.76V for each individual battery. Now when I plug my cart into the big QuiQ charger it tries to charge, then throws a charger error code after a few minutes: battery voltage too low. SO, I need to get my batteries charged… in order to use the charger. 🙃 So I bought an 8v trickle charger off Amazon and hooked it to the first battery in the series. It charged it to ~8.3 and I thought my work was done. Plugged in the big QuiQ charger and same error. Then tested voltage on second battery and realized the trickle charger only charged the one it was hooked to, not the other 5. Big duh. So I trickle charged the second battery to ~8.3 but the first battery had fallen to below 8 again. MY QUESTION: how do I charge these batteries to above 8 so that my big QuiQ will charge again? Can I connect the trickle red clip to pos+ on the first battery and black clip to neg- on the last battery and it’ll charge them all over a few days? Vice versa? Buy 6 trickle charges and charge them all individually at the same time ($$$)? My trickle charge goes up to 24v so maybe I can do 3 at a time? Signed, clueless lady trying to handle this herself. 🙋‍♀️
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to begin with those are not golf cart batteries
they wont last very long

yes do 3 at a time
as soon as you get one set to about 8V swap to the other and vice versa till both sets stay high enough to use the quick

what you need is a big starting booster charger , not a trickle charger

checking and watering the batteries is part of owning a cart with lead acid
(next time go lithium)
you must check every cell every month
ensure the water is covering the plates in the cell before charging
ensure the water is up to the bottom of the filler neck after charging
lead acid loves to be charged and stay charged that is how they last the longest
all batteries of every kind self discharge a little bit every day
you must charge them at least once a week when not in use
google battery care
here is an SOC chart
HotRodCarts

Thread 'Battery State of Charge Percentages & FAQ'

Battery State of Charge Percentages 6-48 Volts
StateOfChargePercentages.jpg

Battery State of Charge Percentages 6-48 Volts

Battery State of Charge Percentages 6-120 Volts
state-of-charge-chart-6-120.jpg

Battery State of Charge Percentages 6-120 Volts
 
several more things
put your run/tow switch (on the controller) in tow , wait 20 seconds
remove and clean the pos. terminal and connector that has corrosion
do the same for the rest of the terminals on the rest of the batteries
you can dip and swirl the cable terminals (not the battery terminals) into a baking-soda/water solution until they stop bubbling
(use about a 1/4 cup per quart of water) (yes plain old arm and hammer in the yellow box at the grocery store)
when you are thru with the baking soda solution
wash your hands with soap
then dip and swirl the terminals in plain water until the solution is rinsed off

use plain water to rinse the tops of the batteries anytime there is acid or dirt on top of them
take care not to let anything foreign get inside the batteries
ESPECIALLY NOT baking soda, if it does then run
nothing else , just run right then
it may explode
in a few minutes if nothing bad happens the danger of explosion is past

once they are all shiny clean
dry them
reconnect and spray them with battery terminal sealer
do not use grease , eventually it will work it's way into the batteries and ruin them

after this return the run/tow to run

always use DISTILLED water only to fill the batteries
NOT tap, filtered, purified, or other
those all have minerals that will build up and short out the plates inside the batteries
distilled is pure H2O , no minerals or other contaminants

pure H2O is exactly what the batteries lose as you use and charge them
so that is all you should put back in
 
I’m not sure your charger has the correct algorithm installed, I see a sticker listing #142. I don’t see that algorithm listed on the Delta Q website, they only show 141 and 143, both of which are intended for AGM batteries with around double the amp hour capacity of flooded lead acid golf cart batteries. If 142 is similar that would explain why the batteries were getting overcharged, the charger would be trying to put double the amps back in your batteries that they are supposed to get. That also may be why it is throwing an error, >7 volts on each battery should be enough for it to turn on. Here is a guide on how to change the algorithm: https://support.delta-q.com/hc/en-u...Q-Series-How-to-Change-the-Algorithm-Manually

If that is too difficult you can bring the charger to a cart shop and they can do the procedure for you. Here is a chart of common algorithms, if you cannot determine the manufacturer of the batteries I would just go for the generic #71
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If I understand the chart above correctly you need to know the AH (amp hour) rating of your batteries to select the correct algorithm. The wrong algorithm will under or overcharge your batteries. Good golf cart batteries will have the AH clearly displayed on them. You may need to contact the store they came from to get that info from the manufacturer. Nowhere on the product page at O'Reilly auto parts does it list the info you need.
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Notsoslim said:
If I understand the chart above correctly you need to know the AH (amp hour) rating of your batteries to select the correct algorithm. The wrong algorithm will under or overcharge your batteries. Good golf cart batteries will have the AH clearly displayed on them. You may need to contact the store they came from to get that info from the manufacturer. Nowhere on the product page at O'Reilly auto parts does it list the info you need.
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when i blow up the pic,
under GC8120 it appears to say 121 min.s at 54 amps
 
Golf Cart Wizard said:
I’m not sure your charger has the correct algorithm installed, I see a sticker listing #142. I don’t see that algorithm listed on the Delta Q website, they only show 141 and 143, both of which are intended for AGM batteries with around double the amp hour capacity of flooded lead acid golf cart batteries. If 142 is similar that would explain why the batteries were getting overcharged, the charger would be trying to put double the amps back in your batteries that they are supposed to get. That also may be why it is throwing an error, >7 volts on each battery should be enough for it to turn on. Here is a guide on how to change the algorithm: https://support.delta-q.com/hc/en-u...Q-Series-How-to-Change-the-Algorithm-Manually

If that is too difficult you can bring the charger to a cart shop and they can do the procedure for you. Here is a chart of common algorithms, if you cannot determine the manufacturer of the batteries I would just go for the generic #71
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THANK YOU. This is the answer. I had my dad come over and I read all thread comments to him and we realized the algorithm is most definitely supposed to be 71. The charger had alg 142 active. That’s why my last pack died. We tried to reprogram the charger to 71 BUT it turns out only 142 and one other # were programmed to the charger. 71 isn’t an option. SO I have to INSTALL 71 to the charger before I can change to that algorithm. This requires a $100 dongle… and it’s my opinion the cart shop I bought the like-kind batteries and charger from should be responsible for add 71 and activating it. They sold me a cart with 71 batteries and a 142 charger which killed them.
 
Jeff104 said:
to begin with those are not golf cart batteries
they wont last very long

yes do 3 at a time
as soon as you get one set to about 8V swap to the other and vice versa till both sets stay high enough to use the quick

what you need is a big starting booster charger , not a trickle charger

checking and watering the batteries is part of owning a cart with lead acid
(next time go lithium)
you must check every cell every month
ensure the water is covering the plates in the cell before charging
ensure the water is up to the bottom of the filler neck after charging
lead acid loves to be charged and stay charged that is how they last the longest
all batteries of every kind self discharge a little bit every day
you must charge them at least once a week when not in use
google battery care
here is an SOC chart
HotRodCarts

Thread 'Battery State of Charge Percentages & FAQ'

Battery State of Charge Percentages 6-48 Volts
StateOfChargePercentages.jpg

Battery State of Charge Percentages 6-48 Volts

Battery State of Charge Percentages 6-120 Volts
state-of-charge-chart-6-120.jpg

Battery State of Charge Percentages 6-120 Volts
Click to expand...
Thank you!!
 
At the price for those batteries above you can buy a set of trojans here in Florida. I have lithium now but the Trojans that were in the cart when I got it died at 7 and a half years old. That is what came in the cart so the original charger matched up like it should.
 
Jordanwadetx said:
Wouldn’t it just be half at 27AH? 121 mins is 2 hours so one hour would be half of 54?
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That is reserve capacity that is a completely different measurement, I do not see the actual amp hours listed anywhere for those batteries. They appear to be the same batteries sold by Duracell as well as NAPA, Duracell lists the capacity as 165 AH but they also say 318 minutes so who knows if that’s accurate.
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NAPA lists the manufacturer as East Penn/Deka so you may want to look for an algorithm for that manufacturer. What was the number of the other preloaded algorithm? It may be usable. I know Club Car has their own special algorithms not listed on the main page so I was wondering if the 142 could be an OEM E-Z-GO version but I was able to find a list of all the E-Z-GO OEM algos here and 142 is not listed anywhere so it is definitely not supposed to be on there. If the people who sold you the batteries sold you the charger too I would be trying to get my money back for the ruined batteries, a golf cart shop should be well aware that chargers need the correct algorithm for the batteries and how to set the charger for the correct one, these chargers have been around for over a decade at this point so if they don’t know that’s just ignorance and incompetence.
 
Golf Cart Wizard said:
That is reserve capacity that is a completely different measurement, I do not see the actual amp hours listed anywhere for those batteries. They appear to be the same batteries sold by Duracell as well as NAPA, Duracell lists the capacity as 165 AH but they also say 318 minutes so who knows if that’s accurate.
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NAPA lists the manufacturer as East Penn/Deka so you may want to look for an algorithm for that manufacturer. What was the number of the other preloaded algorithm? It may be usable. I know Club Car has their own special algorithms not listed on the main page so I was wondering if the 142 could be an OEM E-Z-GO version but I was able to find a list of all the E-Z-GO OEM algos here and 142 is not listed anywhere so it is definitely not supposed to be on there. If the people who sold you the batteries sold you the charger too I would be trying to get my money back for the ruined batteries, a golf cart shop should be well aware that chargers need the correct algorithm for the batteries and how to set the charger for the correct one, these chargers have been around for over a decade at this point so if they don’t know that’s just ignorance and incompetence.
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Yeah I’m debating fighting for the battery pack replacement cost. $1200.

Other other alg # was something in the 30’s. Maybe 34
 
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