Portable power station charging

[El Mariachi]

I am looking at getting a portable power station (specifically the Bluetti EB3A) as a way to recharge my battery and extend my backpacking rides. I am wondering if this charging station will have enough juice to recharge my battery and, if so, how many charge(s) I might reasonably expect.

The Bluetti claims:

• 600W AC Pure Sine Wave Inverter (1,200W surge)；
• 268Wh Capacity；

My bike has a BBHSD 52v motor with a 14 Ah battery. The charger that was supplied with the kit is 58.8v and 2 amps.

I could buy a second battery but the charging station would be more versatile for other applications.

Thanks for the help!

 

[CloneWerks]

A bit of math to make things even;
Your bike battery is 728Wh (so nearly 3x the capacity of that "portable power station") Calculating an estimate of the conversion losses going from DC-to-AC (in the power station ) and from AC-back to -DC with your bike charger and you can probably kiss about 20% (about 53Wh) goodbye leaving you with about 215Wh to work with which means the best you are probably going to get is a 1/3 charge once and then it's all dead weight.

Additionally you have to consider the physical dimensions and weight of that unit, and your charging unit.

I seriously doubt it's going to be even remotely worth doing.

 

[El Mariachi]

Thanks - That's what I needed. Appreciate the help.

 

[HumanPerson]

I use 4 100w solar panels with a mppt boost charge controller to charge 52v 35ah batteries.
I normally set it to charge at 3 amps. So far has worked last winter last summer and we'll see how it does this winter when i use it.
So far so good though and i really like the fact that after initial cash outlay, it's free range wattage

 

[Mysery]

I have a solar generator that I built for camping when boondocking. It consists of a 300 amp hour LiFePO4 battery, 2200 watt inverter, 400 watts of panels and a dc to dc charger with a MPPT charge controller. Instead of plugging the charger that came with the e-bike into the grid I use my solar generator. I know that this is not efficient by a long shot but to me it doesn't matter.

 

[Squire93]

I have one 100 watt solar panel and built a 200 amp hour battery from lithium ion batteries. It takes about 2 days of sunshine to charge to 12 + volts. I was able to charge my 30 amp hour bike battery to about 80%. It isn't much but I like to think I am running on sunshine.