> I wish more devices used easily replaceable standard size cells of rechargeable and non-rechargeable variety. You can walk to any shop or service station and

> I wish more devices used easily replaceable standard size cells of rechargeable and non-rechargeable variety. You can walk to any shop or service station and buy a bunch of AA or AAA batteries if it's urgent. And keep a spare pack at home, in car, etc. There are already plenty of cell phone chargers in the market that take standard batteries. I don't want to sound like I'm advertising any product, but I've purchased a cheap chinese cell phone charger that takes AA batteries. It cost me just $1 out of ebay. I actually purchased it on a gamble, expecting it to be awful, but it actually works very well. It's a very simple gadget that uses standard AA batteries connected in series to ramp up the voltage from around 1.5v to a tad above 5V, which is then used to supply energy to a standard 5V USB charger. Depending on the batteries used, a 4-pack of fresh AA batteries provide around 1800mAh of juice. I've planned on purchasing another just to rig it to take C or D batteries, which provide the same voltage but hold a lot more charge, but honestly the AA pack works very well as it is.