Another DPI question

bxlt

So trying to get used to new or normal batteries as my cart has not had them since I've owned it.

Bought 6 new Trojan T-175 and a new 48v DPI charger (set for Trojan Batteries). Hooked up the batteries and charged them for the first time. The charger quickly climbed up to 56-57v for awhile then went on float and held them at about 53v.

Well finally was able to take the cart out for a test drive went from 51.v down to 50.5v put the cart back on the charger and went in side. Went out to check it and it was at 60.1v and what looked like on float as it was only showing about 5amp and the LED was lit for "charged" but again the voltage was holding at 60.1v.

I unplugged the charger and let it sit over night and this morning voltage was at 53v so I plugged it back in and it went into float mode. My question is is that normal? Is 60v on the charger fine for a 48v pack? And when on float shouldn't the voltage come down?

BGW

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bigstik40

Float voltage for 48 v. Trojans is 52.8 Volts per the Trojan chart. I don't think the DPI was floating at 60.1 volts, it was probably in charge mode. RAY

bxlt

It may have been, I thought the charged light was on but it may not have been, but the amps on the charger was only showing 5, but is 60v a normal voltage to reach on a 48v pack?

Sir Nuke

YES, but what you were seeing is the voltage when or during the charging process ....... but at 100% 50.9v 12hrs after charging.

SoC Chart.JPG

as a reference.....I'm running a 36v cart.....but at the end of the charge cycle, my pack is at 46.5v.....12 hrs later it settles at 38.4v, which is normal.

bigstik40

Trojan shows 59.2 volts for daily charge and 62 volts for equalize charge, so somewhere in between would be about right. Here's a link to the Trojan Battery information. It is good reading if you want to know about your batteries. RAY

http://www.trojanbattery.com/tech-su...y-maintenance/

bxlt

Sir Nuke my voltage at rest 12 hours after the charger is unplugged is in the 51v range (51.2v to be exact), so a little high according to the chart.

So if 60v while charging is high could damage occur?

Sir Nuke

its in the ballpark.....your good.

bxlt

Ray thanks for the info, so it looks like the 60v is in line and shouldn't cause any problems, coming form 36v and seeing charging rates in the 44v-46v range the 60v just seemed really high and had me a little nervous. Also since the first charge never hit anything over 57v I wasn't sure what to think.

bxlt

Thanks Nuke!

Love this site, it has help so much and I've never had a question go unanswered!

vagabond

I went through about 20 recharging cycles before my batts were fully charged.
So have you checked your wot speed yet. you'll probably hit over 30 with your tires if you got at least the 400 dcx controller.

Aint it fun