batt, readings

jaacee44 · 03-13-2016, 05:32 PM

so specific gravity is right where it should be on each battery had load test with hand held tester all showed good,, volt reading after charge and waiting is 6.47 6.34 6.31 6.34 6.41 6.43 total 38.4 at terminals haven,t checked volts on the road but cart slows down after running for 15 min.s and does not like any kind of hill nothing hot or even warm it seems like batt,s,,, but i don,t think readings are bad,,, or are they? your expertise would be greatly appri. thx oh ezgo 1995 no run coast switch

scottyb · 03-13-2016, 05:55 PM

How old are the batteries? What make and amp hour capacity are they?

jaacee44 · 03-13-2016, 06:04 PM

trojan 105s about 3 yrs old

cgtech · 03-14-2016, 08:48 AM

Well, good voltages & SG readings after a charge are a good indicator that the charger is working & the batteries are getting fully charged. Lets for a moment think about the batteries as a "glass of energy, like a glass of water". The fact that the glass is getting filled does nothing to tell how much water the glass can hold. You should charge the cart, then drive it 'till the troubles start, and record the battery voltages while under load. You will need a volt meter with clips to check each individual batteries (and which one is the worst). You can put the meter leads in the charge port (carefully) to monitor the whole pack voltage while driving. You should suspect bad batteries if they drop below 31.5v shortly into the trip, while cruising. Dipping a little below 31.5v briefly during quick acceleration is normal.

jaacee44 · 03-14-2016, 04:04 PM

ok thx,, cgteck volt test while running was my next move,, one question are these hand held load testers with the button you hold down worth paying $ 10 at a pawnshop? thx again

jaacee44 · 03-14-2016, 05:12 PM

thought i already posted this didn,t do right i guess,, went for about 20 min, ride start total 38.4 drop into 31s at sudden start for a second as you said,, cruz on flat 34.06 up a slight grade 32.70 33.40 end ride total 37.5 each batt,, 6.16 6.21 6.26 6.14 6.22 6.33 after setting for 1/2 hour no battery is under 6.31 cart slows a lot on small grade lost a little speed on flat thx in advance JC

03-13-2016, 05:32 PM	#1
jaacee44 Not Yet Wild Join Date: Mar 2016 Location: mid west coast fl. Posts: 12	batt, readings so specific gravity is right where it should be on each battery had load test with hand held tester all showed good,, volt reading after charge and waiting is 6.47 6.34 6.31 6.34 6.41 6.43 total 38.4 at terminals haven,t checked volts on the road but cart slows down after running for 15 min.s and does not like any kind of hill nothing hot or even warm it seems like batt,s,,, but i don,t think readings are bad,,, or are they? your expertise would be greatly appri. thx oh ezgo 1995 no run coast switch

03-13-2016, 05:55 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: batt, readings How old are the batteries? What make and amp hour capacity are they?

03-13-2016, 06:04 PM	#3
jaacee44 Not Yet Wild Join Date: Mar 2016 Location: mid west coast fl. Posts: 12	Re: batt, readings trojan 105s about 3 yrs old

03-14-2016, 08:48 AM	#4
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: batt, readings Well, good voltages & SG readings after a charge are a good indicator that the charger is working & the batteries are getting fully charged. Lets for a moment think about the batteries as a "glass of energy, like a glass of water". The fact that the glass is getting filled does nothing to tell how much water the glass can hold. You should charge the cart, then drive it 'till the troubles start, and record the battery voltages while under load. You will need a volt meter with clips to check each individual batteries (and which one is the worst). You can put the meter leads in the charge port (carefully) to monitor the whole pack voltage while driving. You should suspect bad batteries if they drop below 31.5v shortly into the trip, while cruising. Dipping a little below 31.5v briefly during quick acceleration is normal.

03-14-2016, 04:04 PM	#5
jaacee44 Not Yet Wild Join Date: Mar 2016 Location: mid west coast fl. Posts: 12	Re: batt, readings ok thx,, cgteck volt test while running was my next move,, one question are these hand held load testers with the button you hold down worth paying $ 10 at a pawnshop? thx again

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03-14-2016, 05:12 PM	#6
jaacee44 Not Yet Wild Join Date: Mar 2016 Location: mid west coast fl. Posts: 12	Re: batt, readings thought i already posted this didn,t do right i guess,, went for about 20 min, ride start total 38.4 drop into 31s at sudden start for a second as you said,, cruz on flat 34.06 up a slight grade 32.70 33.40 end ride total 37.5 each batt,, 6.16 6.21 6.26 6.14 6.22 6.33 after setting for 1/2 hour no battery is under 6.31 cart slows a lot on small grade lost a little speed on flat thx in advance JC

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