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First Look Eco Battery 48v 105Ah Jan 2023
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- Опубліковано 24 січ 2023
- Today we take a first good look at the Eco Battery 48v (52.1v) 105 Ah Lithium Iron Phosphate ( LiFePo4 ) battery.
I may not be @WatchWesWork or @MortskeRepair (maybe a bit more like @PuddinsFabShop ) but I think that I got the job done.
🔔 Subscribe to the Channel here 👉 / @schomestead
#ezgo #ezgorxv #leadacidbatteries #watchmework #watch_me_work #watch_me #golfcartseats #smallfarm #golfcartrepair #golfcart #golfcarts #extendedroof #ezgoroof #shotoniphon #ecobattery #eco_battery #lithium_ion_battery #lifepo4 #lithium #lithium_iron_phosphate #closedcaptions
What's the difference using 1 48v (51v LOL, whatever) vs 4 12v lithium batteries if the end net result is 48v anyway? Seems that 4 12v batteries end up much cheaper that a single large 48v battery?
The difference is in the BMS (Battery Maintenance System). If you have a number of cells (or batteries) in series and put a charge on them to charge them up, some cells (usually in the middle) will not get to a full charge. This is due to internal resistance of the cells themselves and/or the connections between them. Now when you discharge the battery, the cells that had a lower charge are discharged even lower than before. When the charger then tries to charge the battery back up, the cells that are at the upper end of the charge get over charged. This cycle continues until you exceed either the lowest threshold of the battery chemistry on the undercharged cells or exceed the highest threshold of the battery chemistry on the over charged cells. This example is of what is happening in each battery. (A 12v battery is made up of 6 cells. Roughly 2v per cell in a lead-acid battery) When we expand that single 12v, 6 cell battery out to 4 batteries, the failure probability expands beyond the realm of possibility into the realm of probability.
The Lead-Acid chemistry batteries of old don't have a BMS for several reasons. Cost vs battery life, robustness of the L-A chemistry, ans so on. I do however know of a few people back in teh day that built their own BMS systems and extended the life of their L-A batteries but in the end, due to the fact that each L-A battery has multiple cells internally, they still fail.
Any modern battery design will have a BMS inside it that monitors and maintains each individual cell. THE BMS (depending on design) will either boost the voltage on a low cell (top balancing) or reduce the voltage on a high cell (bottom balancing).
If you put in 4 12v lithium batteries, you will (most likely) have a BMS inside each battery but you do not have a BMS between batteries. You will still have to rotate the batteries, have individual chargers, or some other method for maintaining a proper charge balance. You will also have interconnect cables. Without the acid spilling around, it will not be as bad as the old L-A systems but an additional concern none the less.
4 lithium batteries is better than 4 L-A batteries but in my opinion not as good as a single 48v battery.
Maybe I'll do a video explaining this in more detail.
@@SCHomestead damn brother, that is quite the detailed explanation, very much appreciated! Thank you for taking the time to write it up, exactly the information I was hoping for to help make the decision.
@@adrian.petrila Glad that I could help!
best explanation i have seen yet of why to go with a single over 4 in series. And I have been doing countless hours of research.@@SCHomestead
I'm having someone put this in.
Any idea what speed I'll get on a 2013 TXT 48V.
I'm willing to pay for a controller if it gets my in the 30s.
My brother's TXT wiht Lithium tops out at 24. My RXV (which has a 3 phase mother controller) tops at 21 like it always has. The motor controller sets the speed but I do get more acceleration out of it.
Well now it's in. It's only about 1 MPH faster. But the torque up hills is way better. And off the line is faster. Charging time is incredibly faster. Well worth it. I'm on the fence if I should put the motor in and go bigger wheels and lift kit. It's a 2013 EZGO. I see good deals on used ones already with lifted with nice wheels. Then I just pay for the motor and lithium battery.
@@MichaelJosephJr934 Personally, I'd add bigger wheels and tires. My RXV is at stock height with 20X10 - 10 tires. My brother's cart is a TXT with a 4" lift (I'm not sure about the tires). Mine is much nicer getting in an out but his can go place mine can't plus it is a bit fast due to the tires.
@@zmikez What do you think the difference with be if I go to the 20x10s?
I now have 18x850-8s. And I need new tires anyway.