Mass fraction of components, % silver, not less than 97.0

Potassium hydroxide and potassium carbonate (in terms of potassium hydroxide) 0.8-1.1

Mass fraction of impurities, % not more than potassium chloride 0.5-0.8 iron 0.004 copper 0.01 nitrate ions 0.05

Bulk density, g/cm3 PSECHA-1U 1.00-1.60; PSECHA-2U 1.00-1.50; PSECHA-3U 1.00-1.50

Electrochemical activity, The highest charge potential, In (1) — 2,05 (2;3) — 1,85 The shortest discharge duration, min (1;2;3) — 55

Chargeability, min PSECHA-2U Not less than 98 PSECHA-2U 100-113 PSECHA-3U 110-125