I purchased this batteries for a 12 year old Eotech holographic sight. It doesn't get used much and non-rechargeable N cell batteries would start to leak acid after a year. So far, I've had no issues with these Odec batteries.
Regarding the charging of these batteries - I use a Eastshine universal NiMH/NiCd charger. N cell batteries are too small to fit in the charging slots so I made spacers out of 4 pennies for each battery. I used pre-1982 pennies that are composed of 95% copper. They work great and the batteries charge with no problems.

















