Q:Ups the problem of external battery pack.

Your UPS inside the series of two 12V battery, do not remove the original battery in the case, you can put your battery in parallel and then connected in parallel.

Q:I know you can always get rechargeable batteries, but I hear that digital cameras use a lot of juice, so you'd probably have to have lots of sets. what do you think?

Lithium Ion are the best ones to use they last longer, but they are a bit expensive. Depending on the camera the user even regular batteries can work well. What I mean by the user is that if you keep the camera display on the whole time as opposed to someone who doesn't, it won't matter what batteries you use you'll certainly cut down on their lasting time. Personally I prefer rechargable Rayovac batteries I like to have two sets with me just in case. I haven't tried Duracell rechargables so I can't comment on them but in my opinion Rayovac lasts longer than Energizers recharagables. Whatever you decide to use just remember to turn off the cameras display when you're not using it anyelse that drains the batteries when possible. If it doesn't need to be on then turn the camera off. If you have an AC adapter then try to use it whenever possible.

Q:i have an old laptop with only 1 battery pack in the back. How do i make it work?

My laptop works without a battery pack. I just plug mine into the wall outlet with the battery charger.

Q:1. whole battery pack of energy total 4400mAh or2. each cell of energy 4400mAh and with 6 cells of this kind in series to form the packThank you for your answer.

The first is correct. THe pack is indivisible and can only be used as a unit with those characteristics, ie capable of a constant 4.4 A output for 1 hour, half that ouput for double the time, 0.44 A for 10 hrs etc. These are nominal figures, so expect to get less, depending on the age of the pack in terms of charging cycles.

Q:Do the nyco battery packs and charging dock or regular rechargable batteries work better for the Wii remote?

yes, they last longer, but it only like replacing batteries 3 to 4 times, eventually the rechargable battery runs out

Q:I have this moped with a dead battery, i need one, and the only one i could find that is in stock, is a 4Ah battery pack. Can i use this battery as a replacement for a 12V 5Ah battery pack?

From the electrical point of view, yes - it does have 20 percent less nominal capacity (4Ah vs. 5 Ah), but it is still better than a dead battery. Before buying check also its physical size, type and layout of terminals - they should be the same as the original battery, otherwise it will be difficult to install.

Q:How to connect rc LiPo saddle pack batteries? Would you tell me?

You can buy some to test, generally it is banana adapter plug. Lol

Q:A 90 kg astronaut floating out in space is carrying a 1.0 kg TV camera and a 10 kg battery pack. He's drifting toward his ship but, in order to get back faster, he hurls the camera out into space (away from the space ship) at 15 m/s and then throws the battery at 7 m/s in the same direction. What's the resulting increase in his speed after each throw?____________________m/s speed increase after discarding camera____________________m/s speed increase after discarding battery

His initial momentum is taken as zero. Momentum of thrown camera is 1 kg x 15 m/s 15 kgm/s his mass after that is 90+10 100 kg. He acquires the momentum of the camera, so 15 100ΔV ΔV 15/100 0.15 m/s Momentum of battery is 10x7 70 kgm/s again he gains this momentum, and his mass is now 90 kg 70 90ΔV ΔV 70/90 0.778 m/s

Q:I want to know how many hours of video can I record with my Canon, with this battery:7.4V 1000mAh Li-ion LP-E5 LPE5 Battery Pack.Thanks.

30 minutes, which is the maximum video shooting time of any Rebel dSLR

Q:I have an old lawn tractor i want to get back up and running. I was wondering if i could start it with a homemade battery pack (made out of 8 AA batteries). PLEASE HELP ME!

Be very careful of doing this. Batteries can explode and if you are new at this, don't do it.