Pioupiou piles
Last week, I realized that the solar panel was not necessarily the best solution. So, I sent a survey to all KissKissBankers, asking them to vote among the following 3 options: Solar panel + rechargeable battery to be changed every 2-3 years. (RAM type. Replacement to be ordered on the Pioupiou website. Cost ~ €10) “Military” non-rechargeable battery, to be changed every 3-4 years. (Li-SOCl2 or Li-MnO2 type. Replacement…