nadelewitz wrote:
Lucky you that rechargeables work on every device in your house. They DON'T work in a number of flash units and cameras. Read my previous posts.
Rechargeable lithium AA? A web search shows only one, brand name Kentli, available on Amazon for $37.00 for a four-pack. Must use its own charger. They've sold
eighteen packs. I can't vouch for them at all. You can spend your money to try them, though.
I have a number of cameras that do just fine with rechargeables (bridge and superzoom), DSLR no, most DSLR and MILC use proprietary LI-ON batteries, so not applicable to that. Flashes/strobes designed for proprietary power, no, they don't use them (AA, AAA, D,C). I have strobe/flashes that do use them, bought recently, modern, but not proprietary power.
Do hate proprietary batteries, what a money making scheme that is, for the vendors. For most of the population, proprietary packs are probably a blessing....no thought, no effort, and they do have very good quality control, and the camera maker (or whoever) doesn't have to worry about battery performance variances, like they would if everybody was doing their own thing.
Do have Lithium rechargeables, some in the form of your common power block with USB plugs, and some in the form of individual battery, some built into packs of the size I require. Chargers - This is important - each battery chemistry type has a specific style of charging, some operate similarly like NIMH and the older NICADS, some (like LI-ON and LI-PO do not) and there can be danger to using the wrong chemistry type charger. I have very nice high quality multi-chemistry chargers for all my different battery types - to power radio control planes/cars/boats & drones, cameras, flashlights, radios, controllers, various electronics and a multitude of devices.
There are any number of lithium batteries in different styles and types available from many sources. They should not be bought and used by anyone who is not familiar with or have proper knowledge of that chemistry. I have been building and using custom packs for years, and buying and using individual cells for these purposes. Have also rebuilt packs for devices like Land Surveyors Theodolite power packs, and others. You can buy them from B&H, although I'd have to look to see what sizes and rating they have.
Power Block/Battery Pack - we (many anyway) have these in our homes, for use when charging phones and such, they are almost all lithium powered, they use single cells grouped together for either a certain voltage range, or a deep well of power, or both.
I'm not being a smartass, I just have years of experience with battery power of all types, heck I was a Fluids/Propulsion and Gasses L Engineer for the Space Shuttle Electric Fuel Cell Power Systems, some very very complicated battery chemistry and electrical systems there!!!
We could spend pages and hours on batteries, but would bore most, not many folks build their own power packs/power systems, and that is probably just as well.