wpns
Solar Joules are catch and release
I have a number of 48V (and a couple of 36V) lead-acid golf carts, and I've just converted one of the 48V carts to (2) https://alliedlithium.com/products/allied-lithium-48v-x-30ah-batteries batteries. And have discovered (in addition to the inaccuracy of the supplied amp-hour-counting meter, sigh) that there's no warning for running out of battery, the cart just stops dead. Turning it off and letting the battery recover for 10 minutes gives you another 10 feet of mobility. [One advantage to Lead-Acid, it just keeps getting slower, so you can usually limp home, though at the expense of deep-discharging your battery pack, which is really bad for it.]
I did borrow some jumper cables and connected one of the 48V carts for 15 minutes and managed to get home, but I'd really prefer a more general solution. (current limiting? What current limiting?). I'd like to source a 48-volt (36V-60V?) input power converter that'd deliver up to 15 Amps (5-30A?) to a "48V" LifePO4 battery for future use. Doesn't even have to do any kind of voltage-based charge stages, just try for an appropriate voltage and limit current till I have enough charge to get home.
Obviously it's not going to be as inexpensive as a set of jumper cables, and extra points for using a golf cart to jump-start EG4 wall-mount batteries, so a more general solution isn't bad.
This kind of thing must exist, no?
I did borrow some jumper cables and connected one of the 48V carts for 15 minutes and managed to get home, but I'd really prefer a more general solution. (current limiting? What current limiting?). I'd like to source a 48-volt (36V-60V?) input power converter that'd deliver up to 15 Amps (5-30A?) to a "48V" LifePO4 battery for future use. Doesn't even have to do any kind of voltage-based charge stages, just try for an appropriate voltage and limit current till I have enough charge to get home.
Obviously it's not going to be as inexpensive as a set of jumper cables, and extra points for using a golf cart to jump-start EG4 wall-mount batteries, so a more general solution isn't bad.
This kind of thing must exist, no?