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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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12-13-2017, 11:44 PM | #21 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: Upgraded to 48v, charging dilemna
[QUOTE=cgtech;1458673]I wouldn't even consider putting my $$$.$$ pack at risk any longer than necessary. For a few weeks 'till I get a proper 48v charger, sure. As a "long term plan", absolutely not.[/QUI
I hear ya, man |
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12-14-2017, 10:07 AM | #22 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Upgraded to 48v, charging dilemna
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12-14-2017, 04:45 PM | #23 |
Not Yet Wild
Join Date: Oct 2017
Posts: 29
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Re: Upgraded to 48v, charging dilemna
The Power wise is likely 15 years or older. So you're saying the 12V charger that uses 5 stage cycle would keep the batteries in better shape than the 36V charger.
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12-14-2017, 05:22 PM | #24 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Upgraded to 48v, charging dilemna
Quote:
Modern chargers use dT/dV (change in Time over change in Voltage) or equivalent technologies to determine when battery is fully charged and the on-charge voltage reached varies with different batteries and age of battery. The legacy chargers with a ferroresonant transformer and a control board (which is simply a semi-smart on/off switch) shut off at a predetermined voltage that is high enough to almost fully charge new batteries, yet low enough not to seriously overcharge old batteries. The PW 28115 (G4 is the revision level) shuts off when the voltage reaches 45V +/- 1V, so the batteries it charges are not fully charged. Close to being fully charged perhaps, but not to the point where the voltage ceases to increase, which indicates full charge. Yes, I am pretty sure the more modern marine charger would charge the two batteries it would be charging to a higher level than the PW-28115. How much higher, I don't know. |
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12-14-2017, 05:56 PM | #25 | |
Not Yet Wild
Join Date: Oct 2017
Posts: 29
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Re: Upgraded to 48v, charging dilemna
Quote:
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12-14-2017, 06:37 PM | #26 |
Gone Wild
Join Date: Nov 2011
Location: S.E. Mi.
Posts: 531
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Re: Upgraded to 48v, charging dilemna
"it would appear that the older technology 36V charger may need an upgrade"
Another good reason to go for the DPI or Yewy Charger from ScottyB! http://www.cartsunlimited.net/yewy-1...t-charger.html |
12-14-2017, 09:42 PM | #27 |
Gone Wild
Join Date: Jul 2009
Location: Lake Elsinore Ca.
Posts: 549
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Re: Upgraded to 48v, charging dilemna
bite the bullet and get the DPI charger, i did the 36 &12 v chargers for about a month a total pain in the A$$
I bought my DPI from Scotty a great guy to deal with |
12-14-2017, 10:14 PM | #28 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Upgraded to 48v, charging dilemna
Also keep in mind the minimum amp capacity of the charger to satisfy the battery charging requirements. This is an example from Trojan batteries. A T-105 has a 225ah rating at 20 hour discharge rate. And they want a charge rate of no less than C/20. This means any charge rate lower than 11.25a for the bulk phase is unsuitable. A big reason is the battery needs to circulate the electrolyte to prevent stratification of electrolyte, and a lower rate won't achieve this.
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12-15-2017, 10:02 AM | #29 |
Not Yet Wild
Join Date: Oct 2017
Posts: 29
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Re: Upgraded to 48v, charging dilemna
Ran first test. After charging all the batteries and letting them sit overnight, I took the cart for a quick 1 mile ride. Here are the voltages afterwards starting with the battery connected to Plus (+) terminal first:
1. 6.44V —— 1st 36V group 2. 6.45V 3. 6.45V 4. 6.45V 5. 6.44V 6. 6.44V —— Last 36V group 7. 6.45V —— First 12V group 8. 6.44V —— 2nd 12V group Total Pack voltage 51.7V Should be noted that #5 and #6 are connected as 12V by manufacturer to run lights and turn signals. Did I give enough stabilization time? Voltages seem high since I’ve been reading that 6.37V was 100% charged. |
12-15-2017, 10:19 AM | #30 |
Gone Wild
Join Date: Aug 2014
Location: fletcher,nc
Posts: 601
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Re: Upgraded to 48v, charging dilemna
i am guessing your batteries are DECA/EAST PENN mfg....those #`s are high and my DECA`s run 1.0v higher(39.4v) than the average reported battery pack on here...several other guys on here report the same thing(36v packs)...
those #`s look good to me(not an expert-lol)and i will see how this thread continues to go... |
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