Let's imagine the $2 flashlight you keep into the junk drawer of one's kitchen has seen better days and you also'd prefer to upgrade it to one thing more powerful. In that case, lithium batteries could be in your personal future, so a crash course on keeping the cells healthy could be valuable information in the long run.<br> <br> <br> <br> RECHARGEABLE VS. DISPOSABLE<br> <br> <br> <br>