Gideon, Thank you for your response. I have adapted the strategy of using lithium ions (18650) flashlights and I recharge every 2 months. This had ensured that my flashlights are ready to use when needed. This tact has worked for me so far. I use NiMH (Eneloops) for all my inside use. I may add the NiMH to the car flashlights in the future, if that strategy does not work out. Thank you for everything on your website. It is a great resource.