I've serviced electric carts in the past and I've found you need to have everything under the seat securely fastened down. How a heavy 6v battery can move during cart use is quite surprising. Also keep that left foot inside the cart on the floorboard. I've seen some pretty nasty injuries. A solar rechargeable electric cart is a pretty cool addition to ways of getting around the property. Nice of Li-Time to make it possible. You may want to think about protecting the under seat component connections. Another surprise cart owners sometimes get.
You should install a warning pad on the battery so you can charge the battery anytime there is adequate voltage to charge coming from the pv panels. You could use one of those 10$ digital programmable relays with a temperature sensor to engage the warning pad whenever it is below freezing. You could also use one of those $10 relays to disconnect the solar panels when it is below freezing. 2 years ago I purchased a composite manufacturing business and one of the products that business manufacturers are complete replacement bodies for golf carts that are restyled with more modern aggressive styling, they are available in fiberglass and vacuum infused exposed carbon fiber.
LiFePO4 batteries are not as sensitive to this as other lithium chemistries. 90-95% is good enough. Though LiFePO4 already has ridiculously longer shelf life and greater cycle count so maintaining them at 100% doesn't make all that much difference. What does hurt them is temperature extremes and really high DOD (depth of discharge). If you stay at 20% or greater you're good. If you keep LiFePO4 above 30% at all times you can get near 10,000 cycles out of them which is just insanity... easily 10x a lead-acid battery and 3x other lithium batteries. However running them down to 0-10% is very bad for them. Charging them too quickly is also bad without active cooling.
that's going to be a fast charge rate, they can take that no problem, but the stress on the plates is highest at full charge, best to not spend much time at that charge state unless you plan on doing a long run to pull it down quickly. Li is not like Lead, they have shorter lives if left at 100% charge. For infrequent use, like in drones, the BMS will bring the battery down to 60% if it's not used within a day or two of 100% charging for storage. We left a set in a cart at 60% for 2 years and it was good to charge back up and run for several long days in the 90-25% range. Afterwards it was charged to 75% and left for another year. But it is fully disconnected from everything, no BMS either, to avoid parasitic loads.
G'day Scott, That's an awesome upgrade, and the golf cart is back in service. Q. How did you end up securing the new battery in the space you had available. Now you're going to have to get all the plastic sides back on for when it rains. Q. Have you ever thought about putting a perspective windscreen in? Thanks for sharing ✌️ Peace from Melbourne Australia.
Please give us follow ups on how this installation works out. Too bad you don’t have regen capability yet for going down the hill. Do you know if your cart can be modified to support that activity?
@BusGreaseMonkey how does this battery do going up hills with a full load? Does it ever shut off on high current? I am returning an eg4 battery that couldn't go uphill on a stock yamaha 36v cart.
Wow that just gave me an idea of the range that battery would give!!! Thats nothing. Now i know yall have a huge hill but going down you basically riding the brakes and useing nothing. Its probably perfect for yalls use but i was questioning should i dip my toes in the LI fory cart. That answers my question eight there seeing how fast it drainied.
I suspect the percentage will calibrate over time. Because 200w max charging brought it up fast. Flat ground i think they say 40 miles gold cart range. Out old cart isn’t very energy efficient and the hill is very steep.
I've serviced electric carts in the past and I've found you need to have everything under the seat securely fastened down. How a heavy 6v battery can move during cart use is quite surprising. Also keep that left foot inside the cart on the floorboard. I've seen some pretty nasty injuries. A solar rechargeable electric cart is a pretty cool addition to ways of getting around the property. Nice of Li-Time to make it possible. You may want to think about protecting the under seat component connections. Another surprise cart owners sometimes get.
You should install a warning pad on the battery so you can charge the battery anytime there is adequate voltage to charge coming from the pv panels. You could use one of those 10$ digital programmable relays with a temperature sensor to engage the warning pad whenever it is below freezing. You could also use one of those $10 relays to disconnect the solar panels when it is below freezing.
2 years ago I purchased a composite manufacturing business and one of the products that business manufacturers are complete replacement bodies for golf carts that are restyled with more modern aggressive styling, they are available in fiberglass and vacuum infused exposed carbon fiber.
Nice upgrade on an older unit!
It really is awesome power with the LiFePO4 battery and the not needing to plug it in is way less worry some
Tip: do not charge the battery to 100%, 85% is good and it will last much longer.
Yes, lithium batteries love to live between 20% charge and 90% as they will last a lot longer than their rated lifetime.
200w charging them will be very nice to them.
LiFePO4 batteries are not as sensitive to this as other lithium chemistries. 90-95% is good enough.
Though LiFePO4 already has ridiculously longer shelf life and greater cycle count so maintaining them at 100% doesn't make all that much difference.
What does hurt them is temperature extremes and really high DOD (depth of discharge). If you stay at 20% or greater you're good. If you keep LiFePO4 above 30% at all times you can get near 10,000 cycles out of them which is just insanity... easily 10x a lead-acid battery and 3x other lithium batteries. However running them down to 0-10% is very bad for them. Charging them too quickly is also bad without active cooling.
that's going to be a fast charge rate, they can take that no problem, but the stress on the plates is highest at full charge, best to not spend much time at that charge state unless you plan on doing a long run to pull it down quickly. Li is not like Lead, they have shorter lives if left at 100% charge. For infrequent use, like in drones, the BMS will bring the battery down to 60% if it's not used within a day or two of 100% charging for storage. We left a set in a cart at 60% for 2 years and it was good to charge back up and run for several long days in the 90-25% range. Afterwards it was charged to 75% and left for another year. But it is fully disconnected from everything, no BMS either, to avoid parasitic loads.
Ol Speedy Gon-Jonathon had the ears laid back on that thing. Nice brakes
Scott, that was a cool upgrade for sure.
alot of the charge controllers ive seen have a thermal probe you attach to the battery so they will shut off charging if too cold or too hot
And they will last a LOT long than the lead acid batteries too.
I look forward to the day that I can swap my car battery for a LiFePO4
You likely already can, pricey but available in many sizes!
G'day Scott,
That's an awesome upgrade, and the golf cart is back in service.
Q. How did you end up securing the new battery in the space you had available.
Now you're going to have to get all the plastic sides back on for when it rains.
Q. Have you ever thought about putting a perspective windscreen in?
Thanks for sharing ✌️ Peace from Melbourne Australia.
You need a boost controller.
keep the clips coming
It looks quite fast driving uphill 😊
Faster than Lenny?
Lenny is much faster up the hill but he uses $6.75 worth of diesel fuel each time.
What is the distance from the garage door to the mailbox?
@@americanrambler4972 I was wondering the same myself. The golf cart is perfect for the schlep to the mailbox.
Excellent !
What happened to Tyler? Is he ok?
Tyler moved back to indiana and took an office job.
@@BusGreaseMonkey oh my. In an office. Thanks for the update Scott.
@@BusGreaseMonkey Kind of sad seeing he has so much talent in the mechanical field.
Please give us follow ups on how this installation works out. Too bad you don’t have regen capability yet for going down the hill. Do you know if your cart can be modified to support that activity?
We don’t go up and down that hill enough per day to even worry about that.
@BusGreaseMonkey how does this battery do going up hills with a full load? Does it ever shut off on high current? I am returning an eg4 battery that couldn't go uphill on a stock yamaha 36v cart.
JUST MAKE SHURE YOU DONT KEEP IT IN THE GARAGE WITH THE BUSSES. THATS MY ADVICE.
Wow that just gave me an idea of the range that battery would give!!! Thats nothing. Now i know yall have a huge hill but going down you basically riding the brakes and useing nothing. Its probably perfect for yalls use but i was questioning should i dip my toes in the LI fory cart. That answers my question eight there seeing how fast it drainied.
I suspect the percentage will calibrate over time. Because 200w max charging brought it up fast. Flat ground i think they say 40 miles gold cart range. Out old cart isn’t very energy efficient and the hill is very steep.
Get it to pull a bus up the hill and I’m sure they’ll pay you a million dollars for the ad revenue!!! lol!!
nice
temu exclusive chinas finest