bq27520 Max Capacity ?

Zoltan Szabo1

The datasheet mentions 32Ah, but there is a remark that 32Ah changed to 14500mAh, but the Rev. B datasheet is quite new, so could someone clarify what is the real max. capacity handled by bq27520 ?

Thanks in advance !

over 9 years ago

0 Onyx Ahiakwo over 9 years ago

TI__Guru* 76230 points

Hi Zoltan,

The device can handle up 32Ah.

thanks

Onyx

0 Zoltan Szabo1 over 9 years ago in reply to Onyx Ahiakwo

Prodigy 220 points

Thank You Onyx !

Im still affraid to use it as we have a quite tight schedule for product lunch, and the the new datasheet rev. B (2015 dec.) says on page 2

"Changes from Revision A (August 2013) to Revision B
Changed 32 Ahr to 14500-mAh"

Are You 100% sure that can handle 32Ah ? - even we need around 18-24Ah.

Thank You for Your time and support !

Zoltan

0 Zoltan Szabo1 over 9 years ago in reply to Onyx Ahiakwo

Prodigy 220 points

Thank You Onyx !

Im still affraid to use it as we have a quite tight schedule for product lunch, and the the new datasheet rev. B (2015 dec.) says on page 2

"Changes from Revision A (August 2013) to Revision B
Changed 32 Ahr to 14500-mAh"

Are You 100% sure that can handle 32Ah ? - even we need around 18-24Ah.

Thank You for Your time and support !

Zoltan

0 Onyx Ahiakwo over 9 years ago in reply to Zoltan Szabo1

TI__Guru* 76230 points

Hi Zoltan,

i should have provided a little more detail on how the gauge can support 32mAh. Without fooling the gauge, it only supports 14.5 as per that document you pointed out.

The attached ppt describes how to fool the gauge for higher capacity packs.

thanks

Onyx

Gauge_Design_Configurations_for_High_Charge__Discharge_Rate_Applications[1].pptx

Power management

Power management forum

bq27520 Max Capacity ?