Re: [RE-wrenches] Charging 48V Battery with One Module

Jason, Mack, Maverick, Kent and John, Looks like the Genasun absorb set points are 57.6 right? Were you still needing this for a LiFePO4 battery option Jason? Maybe they offer a different voltage setpoint option I’m not seeing? I’ve needed something like this for a couple applications as well.

Re: [RE-wrenches] Charging 48V Battery with One Module

Wrenches Here is just a thought, each module is either 2, 3 or some with 4 strings within a single module, so you open the junction box remove the diodes and cut the buss jumpers, reconfigure the box to a single longer string to multiply the voltage and equally divide the amperage. you will need to

Re: [RE-wrenches] Charging 48V Battery with One Module

Genasun is a very interesting option and it looks like they also have a charge controller set for 54.2 volts which is probably the right charge voltage, but it is only rated for a PV max power point current of 8 amps (maybe 9). Ten amps from a 420 W solar panel might be pushing it too hard, cer

Re: [RE-wrenches] Charging 48V Battery with One Module

That's what I was thinking. Not a MPPT controller... Just a "dumb" booster that put the voltage high enough for any off the shelf MPPT controller. But it can't really work like that. The MPPT function need to be at the lower voltage side of the device I think. On Mon, Apr 12, 2021, 9:38 PM Nick A

Re: [RE-wrenches] PV direct EV charging

Mac, Our car gobbles 11,500W when it's plugged in to the grid. Even if we reduced the charge rate it would still be a heck of a draw - the chargers in the EVs are greedy. I'll be curious to hear if anyone has a solution, but my bet is that you need to give the EV a deep well to pull from (probab

Re: [RE-wrenches] PV direct EV charging

I just kind of ran into this issue a client wanted to charge a Tesla at night but the Tesla battery is 3.5 times larger what the than the house needed. The cost of nighttime charging shut the project down. You can operate a car charger off a 240 volt inverter at either 120 or 240 volt. The 120 v

Re: [RE-wrenches] PV direct EV charging

Sorry, I should have clarified, I am interested in EV charging with no grid available. I think that Solaredge requires a grid On Mon, Apr 12, 2021 at 5:51 PM Dana Orzel wrote: > SolarEdge > > > > > > > > Dana Orzel Great Solar Works, Inc. > > *C - 208.721.7003

Re: [RE-wrenches] PV direct EV charging

SolarEdge Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 www.greatsolarworks.com

[RE-wrenches] PV direct EV charging

Hey wrenches, Are there any purpose built inverters designed to charge an EV, PV direct without batteries? Thanks in advance -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates* ___ List sponsored by Redwood Alliance List Address: RE-wrenches@

Re: [RE-wrenches] Charging 48V Battery with One Module

I second the Genasun product line. I've done a few golf cart charging systems. works like a charm.  -Wes Kennedy 303-653-3073 On Monday, April 12, 2021, 12:03:52 PM MDT, Mac Lewis wrote: There is a company called Genasun that I believe makes a boost solar charge controller to do this

Re: [RE-wrenches] Charging 48V Battery with One Module

I have a Genasun 36 volt charger on my golf cart boosting from a Kyosera 245 panel (26.9vm 29 voc) on the roof of the cart. Works perfectly. I'm starting year 12 running this rig with solar only. I originally had 3 85 watt Sunwize panels on it and about 3 years ago I decided I didn't like the w

Re: [RE-wrenches] Monitoring large PV systems

Thomas and wrenches: Thanks for your replies. This system has an Elkor WattsOn digitizer feeding an Alsoenergy PowerLogger 1000 e

Re: [RE-wrenches] Charging 48V Battery with One Module

It looks like the Boost versions of the Genasun only go up to an 8A input current rating. However, they have a footnote on the spec sheet that reads: "*Panel ratings have increased since we designed the GVB. Although we don't believe in changing specifications without a corresponding engineering c

Re: [RE-wrenches] Charging 48V Battery with One Module

I considered a 96-cell panel, but the highest watt panels don't compare to new 72-cell panels coming out in the 400+ watt range. It's a good fallback position because I might be losing more in the conversion than I am gaining in the higher power output. Jason Szumlanski On Mon, Apr 12, 2021 at 2

Re: [RE-wrenches] Charging 48V Battery with One Module

Jason, Would a 96 cell Panasonic module fit in the space you have available? It would give you sufficient voltage to charge this battery. Kent Osterberg Blue Mountain Solar On 4/12/2021 10:40 AM, Jason Szumlanski wrote: I want to charge a 51.2V LiPO battery with a single 420W 72-cell module.

Re: [RE-wrenches] Charging 48V Battery with One Module

I saw solar charge controller that boosts the voltage to allow a 60-cell module to charge a 48V nominal battery, like in a golf cart to Lithium conversion. I think it was a Genasun GVB-8PB-48V-WP. I’m guessing there is a 72-cell version. Thank you, Maverick > On Apr 12, 2021, at 12:43 PM, J

Re: [RE-wrenches] Charging 48V Battery with One Module

There is a company called Genasun that I believe makes a boost solar charge controller to do this. They are in the marine world and I haven't poured over their specs but they are worth checking out. Try looking at Genasun GVB-8-Li Good Luck! On Mon, Apr 12, 2021 at 11:43 AM Jason Szumlanski < j

[RE-wrenches] Charging 48V Battery with One Module

I want to charge a 51.2V LiPO battery with a single 420W 72-cell module. Vmp is 40.14V. It's one of those situations where I just need a lot of battery capacity as a backup for a specified time period, but it doesn't matter how long it takes to charge it back up. And I have space for exactly one 7

Re: [RE-wrenches] Monitoring large PV systems

William, I've used a lot of services from Fat Spaniel, SolarMagic, Draker, Noveda, AlsoEnergy, Locus, Qantum, Powerfactors, and Green Power Monitoring. Which one is the best is highly dependent upon your preferences and what services you require. I prefer AlsoEnergy for numerous reasons, one bein