New Project Farm Battery Testing

[bxparks]

(12-18-2024 03:33 PM)Jase Wrote:  Battery Types & Properties

The page seems outdated or incomplete to me. I know the NiMH batteries best, and there are at least 2 kinds of NiMH:

* LSD (low-self discharge),
* high capacity (marketed as "Pro" or "High Capacity").

The LSD NiMH hold their charge extremely well. The most famous one, Eneloop brand, claims to lose 10% in one year, and only 30% after *10 years*. The Amazon Basics brand claims to lose 20% over 2 years, which roughly in the same ball park.

The high capacity NiMH discharges relatively faster, but has a higher charge capacity. For example, the Eneloop Pro batteries are high capacity, rated to lose 15%/year. The Amazon Basics High Capacity batteries claim to lose 50% after one year, but that's still lower than the 30%/month given in the above link.

Here is my go-to website for Eneloop batteries: https://eneloop101.com

I generally buy either Eneloop (standard) or Amazon Basics (standard) batteries. The prices on the Amazon Basics are sometimes so cheap, they are about the same as a brand-name alkalines.