I thought I need to buy new camping battery. The one I have installed in my camping solar system works poorly. It discharges itself very fast... I thought it was couple of years old and it reached it's lifetime. I wanted to buy a new battery.
Since we have to pay some deposit when I purchase new battery (it's refunded when I leave the old battery in the shop), I took the old battery from the camper and wanted to buy a new one. In one of our local shops the new 12 V 45 Ah battery was sold for 150 PLN (less than $60). But one small detail grabbed my attention and saved me the money.
A small plastic envelope is glued to the battery. Inside that envelope is a piece of paper with warranty and user manual. And the warranty has the purchase date written on that paper. When I read that date I was very surprised. I found out that the battery was purchased last year, on august 10th! So the battery is not old, it might only be broken. Or... just needs to be charged fully and will start working.
So instead taking the battery to the shop, I carried it to my apartment along with rectifier.
From Volkswagen Transporter T3 |
The photo shows the rectifier does work. I hope it'll charge the battery within a day or two...