Solar charging batteries

[redneck joe]

Might not have a powerful enough solar panel to get that minimum needed voltage/ amps or what ever power they need.

I used the plug in that came with it for 24 hours. I seemed to have e killed them.

 

[airshot]

I used the plug in that came with it for 24 hours. I seemed to have e killed them.

Under warranty ?

 

[redneck joe]

Under warranty ?

Nope missed by about three months.

 

[tpenfield]

@redneck joe ,
About the LiFePO4 battery . . .

> Brand and Amp-hour rating?

> With nothing connected and no charging, are you getting any voltage reading from the battery (use a DVM to test it).

> A charger with "0Volt charging" may be needed to bring them back to life. . . it looks like the charger you have should do the "0Volt" thing.

> Don't worry about 14.3 vs. 14.6 reading while charging. . . as the battery charges up the voltage should rise (absorption phase of charging)

> Your solar capacity (20 watts) is still pretty low to bring an LFP battery up after use. You may need an MPPT controller in between the solar panel and the battery.

 

[redneck joe]

The battery has a built in bms?

 

[tpenfield]

The battery has a built in bms?

Most LFP batteries do.

Brand and Ah rating? Got any pics to share?

 

[redneck joe]

Got a 20 and a 50 ah hooked together

https://www.amazon.com/dp/B0B7B29LWF?ref=ppx_pop_dt_b_asin_image&th=1

 

[redneck joe]

This is the charger

https://www.amazon.com/dp/B082LV7RKL?ref=ppx_pop_dt_b_product_details&th=1

 

[redneck joe]

Some of your questions might have been answered earlier in the thread but I gotta get to work.

 

[airshot]

Got a 20 and a 50 ah hooked together

https://www.amazon.com/dp/B0B7B29LWF?ref=ppx_pop_dt_b_asin_image&th=1

That could be a problem, batteries are supposed to be same type and size....

 

[airshot]

Nope missed by about three months.

Contact the manufacturer anyway, if reputable they will help you out, even with instructions on how to fix your issue. One of the reasons I choose the brand I have, is due to service after the sale and after the warrant expired..
Some folks have said the mfgr helped them even after the warranty was up.
Worth a try anyhow !!