60A charger for 48 volt battery

[scootergrisen]

This website have some high current chargers like QW481-600-L:
AC 220V Factory Direct Sale DC 54.6V 60a 3600W charger for 13S 46.8V 48.1V Li-ion/Lithium Polymer battery
Model Number:QW481-600-L
Output current:60a(Max)
Brand Name:QUAWIN
Min. Order: 100PCS
Output power:3276W
Weight: 8000g(only body)
Dimensions (mm): 315*180*90

I guess someone must be using them but what batteries/vehicles are they used for?
Would be so cool having a battery that can accept 60A and fully charge the battery in 30 minutes or how ever long it takes.

 

[dominik h]

For this purpose I would look for a Huawei R4850 (3kW) or R4875 (4kW) or an Eltek Flatpack 2 48/3000 He.
Both around 2kg and size for the Huawei 42x109x285mm and the Eltek 42x109x327mm .
Efficieny around 96% and only one 40mm fan inside.

 

[liveforphysics]

I can charge up to 5kA... but rarely do I charge harder than about 300Amps for pack acceptance rates.

 

[scootergrisen]

What are you charging at 300A?
And how long does it take to charge the battery at 300A?

 

[john61ct]

[

I guess someone must be using them but what batteries/vehicles are they used for?
Would be so cool having a battery that can accept 60A and fully charge the battery in 30 minutes or how ever long it takes.

Ones with high Ah capacities.

It is easy to damage, even destroy a pack by feeding too high a current, start big fires too.

Stay at 0.4C to get best longevity, lower in cold weather.

1C is the limit on many spec sheets for li-ion, but only in warm ambients.

Racers sometimes pre-heat the packs to get high rates without damage.

LTO is an exception, can get back to Full in 10-12min at 25°C

but it is too bulky & heavy for most propulsion use cases.

For House banks in a yacht, RV or off grid cabin, that 3000W unit would be just fine for even a small bank of 150Ah, but most are at 12V or 24V rarely 48V.

800Ah even 1500Ah is normal for a big setup, so chargers like that may get paralleled if suitable AC power is available.