They will normally give you around 500 mAh at the first cycle. After three or four cycle, you will get their full capacity.
You can't discharge them at more than 300 mA, otherwise their capacity will suffer.
You cannot overdischarge them, otherwise they will leak when you charge them.
They stay charged for a year or so.
You can hope to get 50 full cycles from them.
Best use for those RAM (Rechargeable Alkaline Manganese) batteries is wall clock, remote controls, small radios and the like. You can't use them in high power flashlights and cameras.
I use them in places where the 1.2 Volt from Ni-MH LSD battery is to low for the appliance.
The RAM batteries requires a CV charge method; (1.65 V at 20 Celsius). They don't need charge termination, unlike Ni-Zn which requires the same CV method. At 1.65 V, no current will flow in them anymore. They cannot be recharged in series, unless you use an improbable charge balancer.
The only advantage of RAM batteries over LSD Ni-MH is their higher terminal voltage. Compared to Ni-ZN, they are much more stable when unused.
RAM batteries are a niche product which has become obsolete with the onset of Ni-MH LSD batteries. They are unbeatable for calculators, remote controls and wall clocks, where the higher voltage is almost a requirement.
Regards
Anthony
