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Old 07-22-2018, 05:43 PM   #1
DennisWitt
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Default Chevy Volt lithium transplant to Club Car Precident

Alltrax 48500 controller
400 amp solenoid
Sepex A4 high torque motor
(All from ScottyB at cartsunlimited)
4.4 KWH Chevy Volt lithium batteries
(These were custom mod to 14s configurable to max voltage @ ~58 volts)
300 watt solar panel with mppt controller keeps cart running (maybe forever) even with no grid. (As long as the sun shines)

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Old 07-22-2018, 07:43 PM   #2
VanillaXtract
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Default Re: Chevy Volt lithium transplant to Club Car Precident

You should put covers on those batteries. Very easy to short out.
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Old 07-22-2018, 08:38 PM   #3
DennisWitt
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Quote:
Originally Posted by VanillaXtract View Post
You should put covers on those batteries. Very easy to short out.


Agreed. I plan to retrofit old windshield to cover the batteries.
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Old 07-22-2018, 08:56 PM   #4
WalterM6
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Quote:
solar panel with mppt controller keeps cart running (maybe forever)
I think your being optimistic. Nice cart.
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Old 07-22-2018, 09:11 PM   #5
DennisWitt
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Default Re: Chevy Volt lithium transplant to Club Car Precident

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Originally Posted by WalterM6 View Post
I think your being optimistic. Nice cart.


Thanks... I built a 36 v lithium conversion last fall and played golf 6 days/week In Florida last winter and didnít plug it in for charge November thru March. I know, doesnít seem possible, but itís fact.
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Old 07-23-2018, 06:12 AM   #6
beachguysc
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Great setup. Is that solar roof made for a golf cart? Or does it just happen to be the right size? Could you post more on your solar components. Thanks
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Old 07-23-2018, 07:16 AM   #7
DennisWitt
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Default Chevy Volt lithium transplant to Club Car Precident

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Originally Posted by beachguysc View Post
Great setup. Is that solar roof made for a golf cart? Or does it just happen to be the right size? Could you post more on your solar components. Thanks


Solar panel is standard 60 cell panel.
Characteristics Manufacturer PEIMAR
ModelSG300M
Rated Power Output [W]300
Length [mm (in)]1640mm (64.5in)
Width [mm (in)]992mm (39in)
Depth [mm (in)]40mm (1.57in)

Charge controller amazon
DROK MPPT Solar Charge Controller Color LCD Digital Display Boost Voltage Converter Regulator DC 12-60V Step Up to DC 15-90V for 24V/36V/48V/60V/72V 0-10A Battery Pack Charging
Let me know if you need more info Beachguy. Happy to help.
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Old 07-23-2018, 09:05 AM   #8
VanillaXtract
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Quote:
Originally Posted by DennisWitt View Post
Solar panel is standard 60 cell panel.
Characteristics Manufacturer PEIMAR
ModelSG300M
Rated Power Output [W]300
Length [mm (in)]1640mm (64.5in)
Width [mm (in)]992mm (39in)
Depth [mm (in)]40mm (1.57in)

Charge controller amazon
DROK MPPT Solar Charge Controller Color LCD Digital Display Boost Voltage Converter Regulator DC 12-60V Step Up to DC 15-90V for 24V/36V/48V/60V/72V 0-10A Battery Pack Charging
Let me know if you need more info Beachguy. Happy to help.
That seems like a good price. About $300 for the panel and controller? You just set the max voltage on the controller? I like that setup. Seems clean and smooth.

I also have those same LiOn batteries. Before your solar setup, how well did the batteries hold a charge? I feel like mine are dropping too much for it to be normal.
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Old 07-23-2018, 09:28 AM   #9
NCPW
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Are you using a BMS?
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Old 07-23-2018, 03:29 PM   #10
d_wittenborn
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Default Re: Chevy Volt lithium transplant to Club Car Precident

Quote:
Originally Posted by VanillaXtract View Post
That seems like a good price. About $300 for the panel and controller? You just set the max voltage on the controller? I like that setup. Seems clean and smooth.



I also have those same LiOn batteries. Before your solar setup, how well did the batteries hold a charge? I feel like mine are dropping too much for it to be normal.


Solar panel was about $210 controller about ~35-40. I set the charge controller to shut down at 58 volts, so about 4.15 v per cell. I added 2 extra cells on each pack to bump total voltage up to just over 58. Total WH for the 2 pack is about 4400.
I donít have a good guess on range yet. The solar wonít add much range while driving, but if the cart is parked in full sun, the amp hours add up nicely. These batteries came out of a Chevy Volt that I bought new about 5 years ago, so they are well used but also well cared for.
No BMS yet, and I may not add one. I have the cells balanced within about 3/1000 of a volt from high to low, and they donít seem to be drifting. Iíll be watching it closely and if they begin to drift, Iíll have to add a couple of BMS boards. I plan to install failsafe relays to interrupt charge and discharge before any damage could be done. Iím hoping the packs last longer than I do...
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