Have to concur with all the one star ratings here. I bought these batteries for my electric timer candles that I use to lit around my house windows. The candles usually lit up for about 5 hours per evening. After less than a week, all candles went dim during the hours when they were supposed to be lit. Turns out, all the batteries went below the needed charge power. Thats after about 5 of 5 hour usages running up tiny candle light. I should have sent this back indeed. :( Amazon should take negative credit for allowing to advertise this product as "Super Heavy-Duty".