LiFePO Battery Recommended Charging Amps, Effects of Higher Charge Controller Amps?

[Piratebones]

I can't find any discussions on how a higher than the manufacturer "recommended charge current" of "20A 0.2 C" from a charge controller will affect a battery. The battery I am looking at is a LiFePO 24V, 100Ah.
My question is how will a 50A or 60A charge controller affect the battery? Might it damage it, reduce its life, reduce its cycles life? My concern is because I need the larger charge controller to match my PV wattage and I'm trying to increase my stored Wh. Thank You
Edit: corrected battery Ah

 

[time2roll]

The best solution is to add more battery. Very well could be the battery BMS limit with the risk of overcurrent shut down or worse.
I would not design and build a system where any component is over current or voltage rating.

 

[Piratebones]

The best solution is to add more battery. Very well could be the battery BMS limit with the risk of overcurrent shut down or worse.
I would not design and build a system where any component is over current or voltage rating.

BMS is 100A and I'll be well below that. Adding more battery is what I'm attempting to do. Thanks

 

[time2roll]

Yes so it looks like three of those batteries in parallel would give a total 60 amp charge rating.
Some BMS have different charge vs discharge rating. Yes if the rating is 100 amps fine and worst case slightly reduce the life of the cells.
Best to check with the manufacturer.

 

[KnobCountry]

A quality charge controller allows you to dial down the charge rate.

 

[Piratebones]

Yes so it looks like three of those batteries in parallel would give a total 60 amp charge rating.
Some BMS have different charge vs discharge rating. Yes if the rating is 100 amps fine and worst case slightly reduce the life of the cells.
Best to check with the manufacturer.

Thanks, I have a message into the manufacturer and have not received a response.

A quality charge controller allows you to dial down the charge rate.

You know of one that will allow you to dial down the charge current while maintaining the desired voltage? I haven't seen one but then again, I'm relatively new to these systems. Thanks

 

[time2roll]

My Morningstar Tristar MPPT 60 has a max amps setting that does not affect voltage settings.
I assume many others do also.

 

[Piratebones]

I've seen it suggested that wiring 2 of these batteries in parallel will double the "Recommended Charge Current" of 20A (0.2 C) because it doubles the Ah capacity to 200Ah x 0.2 = 40A. Anyone know for sure that it works this way on the C factor? From looking at the Mfg. literature, the recommended charge current is 0.2 C regardless of the individual battery Ah size, so it makes sense that paralleling batteries might follow suit. If so, my problem would be solved by just buying two batteries and paralleling them.

 

[wpns]

I've seen it suggested that wiring 2 of these batteries in parallel will double the "Recommended Charge Current" of 20A (0.2 C) because it doubles the Ah capacity to 200Ah x 0.2 = 40A. Anyone know for sure that it works this way on the C factor? From looking at the Mfg. literature, the recommended charge current is 0.2 C regardless of the individual battery Ah size, so it makes sense that paralleling batteries might follow suit. If so, my problem would be solved by just buying two batteries and paralleling them.

That's correct, if your battery limit is 0.2C, then twice the AH will allow twice the charge current (still 0.2C).