Are the 9v batteries lsd (low self-discharge)? more importantly, are they 9.6v or 8.4v? only respond if you know.

Yes, they're low self-discharge (LSD). They're 7-cell units (8.4 V nominal).

Is it 10000mAh in total, or per individual battery?

D capacity is 10000mAh per battery. if you put two in parallel you get 20000 at 1.2 volts, if in series you get 10000 at 2.4 volts.

How would these perform in low temperature? I would need them to reliable work close to 0C (32F)

according to a chart here http://nordicgroup.us/battery/ a NIMH battery at 0C will have 80% of its room temperature (25C) capacity.

For the 9V battery - what are the exact dimensions (without posts) and how many recharge cycles are they rated for?

The ones I received measure 48.3 (45.3) x 26.5 x 17 mm (the 45.3 is the shoulder dimension you requested; full dimension offered for other readers). Oops: Description says 1,000 cycles (as "times"). I'd last thought it unspecified.

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Amazon Basics 4-Pack Rechargeable C Cell NiMH Batteries, 5000 mAh, Pre-Charged, Low Self Discharge, Recharge up to 1000x Times

Product ID: 156077074

Details

Battery Capacity
5000
Battery Cell Composition
NiMH
Brand
Amazon Basics
Number of Batteries
4 C batteries
Recommended Uses For Product
Rechargeable C

⏳80% charge retention for 24 months

🔋5000mAh high capacity

♻️Rechargeable up to 1000x

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Description

🔋 Power up smarter, recharge greener, and never run out of juice!

POWER THAT LASTS - Massive 5000mAh capacity fuels your devices longer without constant swaps.
READY WHEN YOU ARE - Pre-charged and good to go straight out of the pack—no waiting, no hassle.
SLOW SELF DISCHARGE - Keeps 80% of its charge for 2 years, so your batteries stay fresh and reliable.
ECO SMART RECHARGEABILITY - Recharge up to 1000 times, slashing waste and saving you money.
FRUSTRATION FREE SUSTAINABLE - Ships in recyclable, certified frustration-free packaging—good for you and the planet.

Amazon Basics 4-Pack Rechargeable C Cell NiMH Batteries deliver a robust 5000mAh capacity with pre-charged convenience. Designed for longevity, they maintain 80% charge over 24 months and can be recharged up to 1000 times, combining eco-conscious savings with reliable performance. Ideal for professionals who demand sustainable, hassle-free power solutions.

Specifications

ASIN	B07PHCVSSS
Amperage	1.2 A
Antenna Location	Rechargeable C (HR14) batteries to replace single use Alkaline C (LR14) batteries
Battery Capacity	5000
Battery Cell Type	NiMH
Best Sellers Rank	#2,273 in Our Brands ( See Top 100 in Our Brands ) #7 in C Batteries
Brand	Amazon Basics
Customer Reviews	4.4 4.4 out of 5 stars (10,289)
EU Spare Part Availability Duration	2 years
Item Dimensions	4.2 x 3 x 1.8 inches
Item Weight	81 g
Manufacturer	Amazon
Model Name	Rechargeable batteries
Model Number	COR00001
Number of Batteries	4 C batteries required.
Reusability	Rechargeable
UPC	192233063287 840095878630 840083670024
Unit Count	4 Count
Voltage	1.2 volts

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3838 kr

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