Lithium Chargers Indivudial or 2 bank.

[dartag1829]

Going to be getting Lithium's in the spring. I see some guys use individual chargers on each battery. Since I hardly ever fish 2 days in a row can you get by with 1 charger and charge separately.

[yam911]

One charger to charge each battery separately or one charger to charge both at the same time will work.

[DREWTICK]

if you are getting only 1 single charger to charge 2 batteries separately I recommend a minimum of a 10 amp charger

[dartag1829]

if you are getting only 1 single charger to charge 2 batteries separately I recommend a minimum of a 10 amp charger

Thanks will be talking with you in April when I get home from Florida.

[goodman_fishing]

You can definitely get away with one charger and charge them separately. Make sure it is rated for Lithium/LiFePO. Charging at 0.2C of the battery capacity you are buying is ideal (100Ah x 0.2C = 20Ah), I wouldn't recommend going lower than 0.1C, if you can help it.

This is a pretty solid charger at 10a (ad)https://amzn.to/47PoWRk

[tlefire]

https://www.amazon.com/NOCO-GEN5X2-F...s%2C178&sr=8-5

Used this one for 2 years, no problem.

[Aj14]

if you are getting only 1 single charger to charge 2 batteries separately I recommend a minimum of a 10 amp charger

I literally just ordered a second charger as I was thinking it would be better for the batteries to have two.
I have heard one won't be harmful in any way but it would just take a little longer to charge. Others say get two.
Any other thoughts?

[goodman_fishing]

I literally just ordered a second charger as I was thinking it would be better for the batteries to have two.
I have heard one won't be harmful in any way but it would just take a little longer to charge. Others say get two.
Any other thoughts?

There's no real advantage specific to charging behavior to running a single multi-bank charger versus two separate chargers. The multi-bank charger acts like two divorced chargers once plugged in. It's just more convenient.

[catdude28]

There's no real advantage specific to charging behavior to running a single multi-bank charger versus two separate chargers. The multi-bank charger acts like two divorced chargers once plugged in. It's just more convenient.

Exactly. One charger should take up less room than two. The only advantage of two chargers is if one goes down, then you still have one functional charger

[Aj14]

There's no real advantage specific to charging behavior to running a single multi-bank charger versus two separate chargers. The multi-bank charger acts like two divorced chargers once plugged in. It's just more convenient.

Ok my question may have been somewhat misunderstood.
And treading on taking over the ops question but it is all relevant to the topic.
I have a four bank NOCO charger and just bought another lithium battery. Would it be harmful to connect the 4th bank to charge the two batteries. Of course it should take about double charge time but that wouldn't be an issue.
With the cost of these batteries, would it be better to spend another $100 for another single bank charger and separate the batteries?
This may be what the op was also asking.

[DREWTICK]

Ok my question may have been somewhat misunderstood.
And treading on taking over the ops question but it is all relevant to the topic.
I have a four bank NOCO charger and just bought another lithium battery. Would it be harmful to connect the 4th bank to charge the two batteries. Of course it should take about double charge time but that wouldn't be an issue.
With the cost of these batteries, would it be better to spend another $100 for another single bank charger and separate the batteries?
This may be what the op was also asking.

thats fine if those 2 batteries are in parallel and both are same battery type, also with lithiums its best to criss cross the charging cables , pos on one battery and neg on the other battery

[goodman_fishing]

thats fine if those 2 batteries are in parallel and both are same battery type, also with lithiums its best to criss cross the charging cables , pos on one battery and neg on the other battery

If the two lithiums were out of balance from each other, wouldn't the higher SOC of the two stop the charger before the low battery catches up?

[yam911]

If the two lithiums were out of balance from each other, wouldn't the higher SOC of the two stop the charger before the low battery catches up?

When connected in parallel both batteries will be provided with the same voltage. The voltage of the power source. Say 14.5 volts.

Neither battery will know (or care to know) that another battery is connected to the power source.

Consider a lithium battery in parallel with a lead acid battery. The lithium battery will be having X current flow through it while the lead acid battery will have Y current flowing through it. Y being less than X. X plus Y current will be flowing from the power source.

[goodman_fishing]

When connected in parallel both batteries will be provided with the same voltage. The voltage of the power source. Say 14.5 volts.

Neither battery will know (or care to know) that another battery is connected to the power source.

Consider a lithium battery in parallel with a lead acid battery. The lithium battery will be having X current flow through it while the lead acid battery will have Y current flowing through it. Y being less than X. X plus Y current will be flowing from the power source.

I was looking to better understand if these conditions were to occur, what happens:

1. Two batteries of different actual capacity, say 95Ah vs 101Ah, both "100Ah batteries"
2. One battery requires cell balancing and the other doesn't

In my head, the higher performing/better balanced battery will trigger the charger to kick-out first, leaving the lesser battery at a disadvantage. There's no extended "float" cycle to level out the two like on lead-acids.

[yam911]

I was looking to better understand if these conditions were to occur, what happens:

1. Two batteries of different actual capacity, say 95Ah vs 101Ah, both "100Ah batteries"
2. One battery requires cell balancing and the other doesn't

In my head, the higher performing/better balanced battery will trigger the charger to kick-out first, leaving the lesser battery at a disadvantage. There's no extended "float" cycle to level out the two like on lead-acids.

My comments are based upon a constant voltage power source. Say the alternator of a motor. Say a simply constant voltage dumb battery charger. Say a simple DC to DC charger.

If a specialized battery charger cuts out or cuts in, based on whatever it is using to do its magic, then all bets are off.

It is not by happenstance that we see many many many reports of strange stuff going on with all of the many different types of chargers that are being offered and used.

The KISS approach seems to be long gone. The marketing men are doing their jobs well.

[Aj14]

My comments are based upon a constant voltage power source. Say the alternator of a motor. Say a simply constant voltage dumb battery charger. Say a simple DC to DC charger.

If a specialized battery charger cuts out or cuts in, based on whatever it is using to do its magic, then all bets are off.

It is not by happenstance that we see many many many reports of strange stuff going on with all of the many different types of chargers that are being offered and used.

The KISS approach seems to be long gone. The marketing men are doing their jobs well.

With so much uncertainty on this topic and the cost of the batteries, I reordered another 10/1 NOCO battery charger.