48 Volt A/C Charger Recommendations? Something around 10 amps

[NewGuy23]

I have a dying 48v battery bank (8x200ah Renogy Hybrid Gel/AGM). I want to limp them along with a 48 volt battery charger. I have 30 amps of A/C power available. Can someone recommend a good battery charger that will deliver about 10-15 amps from the A/C power? I'd like one that can also charge lithium, as I plan to upgrade the batteries when I can afford to. Thanks in advance, this is a great group.

 

[bestconcreteblock]

NPB-1200-MEAN WELL Switching Power Supply Manufacturer

MEAN WELL is one of the world's few standard power supply mainly professional manufacturers, covering 0.5 to 25,600W products are widely used in industrial control, medical and other fields, in line with international safety certification, short delivery of spot inventory.

www.meanwell.com

I bought from here:

https://www.aliexpress.us/item/3256805860406529.html?spm=a2g0o.order_list.order_list_main.5.6f8a1802MuZWIJ&gatewayAdapt=glo2usa

I also got the programmer for custom charge profiles.

https://www.aliexpress.us/item/3256805811726057.html?spm=a2g0o.order_list.order_list_main.4.6f8a1802MuZWIJ&gatewayAdapt=glo2usa

 

[SamDeleted]

finding 48v AGM/gel battery charger can be difficult and expensive


It might actually be cheaper just to buy a discount 48v hybrid inverter to use as a battery charger

 

[NewGuy23]

NPB-1200-MEAN WELL Switching Power Supply Manufacturer

MEAN WELL is one of the world's few standard power supply mainly professional manufacturers, covering 0.5 to 25,600W products are widely used in industrial control, medical and other fields, in line with international safety certification, short delivery of spot inventory.

www.meanwell.com

Looks great, this is the only thing that concerns me: Suitable for lead-acid (Pb) and li-i on batteries

 

[NewGuy23]

finding 48v AGM/gel battery charger can be difficult and expensive


It might actually be cheaper just to buy a discount 48v hybrid inverter to use as a battery charger

That's what powers my system, but 30 amps isn't enough to activate the charger and have pass through power. It just switches back and forth from the panels to the A/C every few seconds.

 

[SamDeleted]

that will deliver about 10-15 amps from the A/C power?

Is that 15amps at 48v dc (720w)

or 15 amps from the 110v AC (1620w)

?

 

[NewGuy23]

Is that 15amps at 48v dc (720w)

or 15 amps from the 110v AC (1620w)

?

15 amps from the A/C, 120 volts

 

[SamDeleted]

That's what powers my system, but 30 amps isn't enough to activate the charger and have pass through power.

Yea I see the problem

You'd have to buy a second separate Hybrid and use to solely for battery charging, this would stop the pass-though issue you are having

 

[NewGuy23]

Yea I see the problem

You'd have to buy a second separate Hybrid and use to solely for battery charging, this would stop the pass-though issue you are having

How is that different from just using a 48 volt charger?

 

[bestconcreteblock]

Looks great, this is the only thing that concerns me: Suitable for lead-acid (Pb) and li-i on batteries

Isn't that what you were looking for? Check out the specs, it can be customized for any charge profile.

 

[timselectric]

Just get an EG4 Chargeverter.
You can set the voltage and amperage for whatever you want. It works on 120v or 240v.

 

[SamDeleted]

15 amps from the A/C, 120 volts

I see , generally when we talk about battery charger we base it off their output ,


15a input X 110v = 1800w

1800w ÷ 48v = 37.5amp


So you need somewhere between a 30-40 amp 48v battery charger

How is that different from just using a 48 volt charger?

Price and availability mostly, Hybrid inverters have an AC/DC charger that is essentially the same as any other battery charger, it just happens to be built into the Hybrid

low end hybrid inverters generally come in a good bit cheaper than a large dedicated battery charger. (eg. 48v 3000w Hybrid are about £300 in the UK , price in the US might be different)

I can't get a suitable battery charger for anywhere near £300 here

 

[SamDeleted]

Just get an EG4 Chargeverter.
You can set the voltage and amperage for whatever you want. It works on 120v or 240v.

EG4 Chargeverter is the best option I think ?

 

[Brucey]

13A 48V charger: $156 after coupon.

https://www.amazon.com/HTRC-Charger-Battery-Trickle-Lead-Acid/dp/B0B56XV1GY/

 

[NewGuy23]

Isn't that what you were looking for? Check out the specs, it can be customized for any charge profile.

Oh, ok, that's perfect then! Thanks so much!

 

[NewGuy23]

13A 48V charger: $156 after coupon.

https://www.amazon.com/HTRC-Charger-Battery-Trickle-Lead-Acid/dp/B0B56XV1GY/

Have you used this one? Thanks for the reply

 

[NewGuy23]

I see , generally when we talk about battery charger we base it off their output ,


15a input X 110v = 1800w

1800w ÷ 48v = 37.5amp


So you need somewhere between a 30-40 amp 48v battery charger



Price and availability mostly, Hybrid inverters have an AC/DC charger that is essentially the same as any other battery charger, it just happens to be built into the Hybrid

low end hybrid inverters generally come in a good bit cheaper than a large dedicated battery charger. (eg. 48v 3000w Hybrid are about £300 in the UK , price in the US might be different)

I can't get a suitable battery charger for anywhere near £300 here

Like I said, I have a max of 30 amps available

 

[NewGuy23]

Just get an EG4 Chargeverter.
You can set the voltage and amperage for whatever you want. It works on 120v or 240v.

Dang, that thing is amazing. I love that I can use an old school generator with it too. I think we have a winner! Thanks!

 

[SamDeleted]

Like I said, I have a max of 30 amps available

Haha , it's a little confusing do not worry , amps are relative

30 amps@120v ac is NOT the same as 30 amps@48v dc

 

[Brucey]

Have you used this one? Thanks for the reply

I haven't but their 12/24V model was on my shortlist before I went down the dark path of Victron.