Solar battery charger for 1000watt ebike battery

[cindy]

Hey does anyone know of a solar battery charger strong enough to charge a 1000 watt e bike battery?

 

[Craig]

All solar chargers work on the amount of power the panel (or panels) create. If you buy a 100w panel, you'd expect nominally to spend 10 hours charging a 1000w battery. If you had 10 100w panels in series, you could charge the thing in 1 hour if the battery could accept the charge that fast.

I have a160w panel and a 840w battery, I charge full in about 5 hours.

 

[dragonbyte]

I have two, one is folding, about 12lbs, and folds to about 1 foot square. I'm moving away from that to a flexible panel from Renogy which I'm going to mount on my trailer so I can use it while on the go.

Renogy 160 Watt 12 Volt Flexible Monocrystalline Solar Panel 788051146075 | eBay

Easy to transport and install, this solar panel can be affixed to uneven surfaces, making it ideal for airstreams, campers, and boats. The ultra-lightweight design allows for incredibly simple storage, transport, and installation.

www.ebay.com

Here's my current setup:

 

[eli]

I use 200w of solar and 500w inverter to charge my ebike battery. The solar charger is 30amp

 

[dragonbyte]

I use 200w of solar and 500w inverter to charge my ebike battery. The solar charger is 30amp

I don't use an inverter. I use straight DC to the battery via the MPPT controller. Way less loss than DC to AC back to DC.

 

[gary]

There is more to it than dividing and use of arithmetic. As I live off grid and get all my power from photovoltaic panels. Unless pointed at the Sun they don't produce at maximum rated power. Then all chargers and any inverters you might require have losses,nothing is 100% efficient. There are no 50+volt panels so you will need a charger. The charger will most likely be a 110v charger. Fortunately you will most likely not need a pure sine wave inverter(read expensive). A "modified" inverter will probably work fine. The panels are not too much nor are modified inverters. $250 for a panel maybe $80 for the inverter. The charger is up to you. I hope this helps a little. PS: winter and rain will kill productivity. Especially rain.
The mppt controllers ain't cheap but they are great for voltage variations. That $80 inverter doesn't apply to mppt. Look before you leap.

 

[dragonbyte]

There is more to it than dividing and use of arithmetic. As I live off grid and get all my power from photovoltaic panels. Unless pointed at the Sun they don't produce at maximum rated power. Then all chargers and any inverters you might require have losses,nothing is 100% efficient. There are no 50+volt panels so you will need a charger. The charger will most likely be a 110v charger. Fortunately you will most likely not need a pure sine wave inverter(read expensive). A "modified" inverter will probably work fine. The panels are not too much nor are modified inverters. $250 for a panel maybe $80 for the inverter. The charger is up to you. I hope this helps a little. PS: winter and rain will kill productivity. Especially rain.
The mppt controllers ain't cheap but they are great for voltage variations. That $80 inverter doesn't apply to mppt. Look before you leap.

There are no 50 volt panels but you can get a controller or transformer to step 12v up to 48 or 60 easily, and that's way less loss than going through an inverter. Then it's DC-DC charging your batter.

 

[jason]

I have a Jackery Explorer 1000 Power Station. It puts out 110v ac, 12v dc and has usb charging ports. Combined with my two Rock Pals 100w folding portable solar panels and relatively sunny days you've got perpetual power. I wouldn't want to lug this stuff around on a bike but it would be ideal for wilderness camping.