battery charger for my lithium batteries...

[Kyz]

I need to order a battery charger for my 2 230AH Li Time lithium batteries. From the paperwork, it says I need to charge them to 100% before connecting to each other and setting up the solar system. So chances are I will only use this thing twice, once for each battery.

Do I order this (or something like it) 
https://www.amazon.com/dp/B0CF9CNLG1/?co...CYV60VMF8B

or this?
https://www.amazon.com/dp/B0B3CV4S2Y/?co...UEM3KX6RRW

I'm having analysis paralysis...

[rvpopeye]

The first one is 10 amps (charging per hour) 100Ah in 10 hours
The second one is 20 amps (per hour) 100Ah in 5 hours
The second one will take half as long to charge than the first..
IF they are discharged significantly .
(2 depleted 230Ah batteries with a 10A charger is 46 hours ..)

But new ones are usually close to full !
So it wouldn't matter too much but that's what you need to know for using in the future..
Also , your batteries will have a max charging amp rating in the spec sheet. EX:50 amp max charge rate on a 100Ah battery
That is the size of the biggest charger you should use. .. (a 50 amp charger would charge it in 2 hours....).

Pretty much all you need to know to decide .

I'd get the first one (at that $25 price , it's almost disposable)
especially if you don't think you'll ever need it again .
A higher amp rating will make a difference in charging time if you need to charge with a genny etc.

I was just checking out the LiTime battery on scamazon and I see they make a 20A charger selling for $110 !
The Renogy 20A is $110 , Victron has 5A , 15A and 30A from $85 - $185

[Kyz]

I really have no way to check how charged they are right now. But the paperwork says they are not shipped fully charged. Research says they are usually shipped at 30% to 60% charge.

Yes the first one at $25 seems like a reasonable way to go considering I won't need it long.

[rvpopeye]

I just edit posted some name brand prices to compare your savings.....

[Riverman]

I like my 20-amp charger. The 10 amp charger has 23 ratings and the 20 amp has over 1000 good ratings.

[Kyz]

46 hours (per battery) seems excessive lol but makes sense.

[Kyz]

I like my 20-amp charger.  The 10 amp charger has 23 ratings and the 20 amp has over 1000 good ratings.

True on the ratings, but those were more examples of types. Although, admittedly, those are the two that are in my "list."

[rvpopeye]

$25 is the tip on the meal you're gonna take your dad out for.....