Hey, I ordered some 8.4v NiMH batteries from EBL because they have the highest capacity rating I've seen in that format, but I noticed that under rapid charge current, it says 150mA is 1.0C. I'm gonna build a solar battery charger and I'm gonna charge at that current, but it says to charge for 1.1H. If it really were 280mA, then shouldn't I charge for about 2H?
https://www.eblofficial.com/products/9v-rechargeable-battery?variant=32839022903378

 

Probably not. What's important is to not let the battery exceed 10.5 volts while charging.
What are you using for a charger?

 

Max713 and a 15.4v, 200mA solar panel

 

I would charge it at 1C and set up the MAX713 using the external thermistors.

 

EBL batteries are sold online, Not in stores. Is the 280mAh number real and actual?
I buy Energizer batteries in stores and their 9V Ni-MH battery has a capacity of 175mAh which I believe because they say at 35mA. ESB does not say 280mAh at any current.

EBL says their 9V Ni-MH battery has a 0.1C rating of 15mA, 0.2C rating of 30mA and a 1.0C rating of 150mA then the 1C rating of 150mA is the mAh rating!