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Thread ID: 69077 2006-05-21 03:46:00 Type of battery for my Calculator. Renmoo (66) PC World Chat
Post ID Timestamp Content User
456544 2006-05-21 03:46:00 Just yesterday, my Casio Graphics Calculator fx-9750G PLUS flashed the low-battery sign. To be on the safe side - my trigonometry exam is coming! - I plan to pop by either New World or Pak N' Save and hunt for 4 AAA batteries. However, should I go for Heavy Duty or "Light duty" or alkaline ones? The batteries that come with this calculator are "Industrial Heavy Duty", manufactured by Panasonic. Besides, which brand of batteries should I go for? Energizer? Or any generic (e.g. Transonic) one will do?

Cheers :)
Renmoo (66)
456545 2006-05-21 03:49:00 Rechargeable :D And a charger.

At least you wont have to buy anymore.

Or buy one that goes by solar power.
Speedy Gonzales (78)
456546 2006-05-21 03:59:00 Due to the importance of your exams, I would buy alkaline batteries and the best I could afford.

However on saying that, your calculator shouldn't take much to power it so perhaps this approach will be an overkill. I would be a bit cautious about using Ni-cads as these have a cell voltage of only 1.25v, not 1.5v.

Check the milliamp (ma) draw on the backplate on your calculator and go from there.

BURNZEE
Burnzee (6950)
456547 2006-05-21 03:59:00 Don't waste your money (or time) on rechargeables for a calculator. It uses so little power that the rechargeables will go flat from sitting unused. And unmless you have 2 sets, you will be out of action while you charge them.

Alkalines will last a long time. DSE's have about the best value for money on (their own brand) alkalines.
Graham L (2)
456548 2006-05-21 04:26:00 Due to the importance of your exams, I would buy alkaline batteries and the best I could afford.

However on saying that, your calculator shouldn't take much to power it so perhaps this approach will be an overkill. I would be a bit cautious about using Ni-cads as these have a cell voltage of only 1.25v, not 1.5v.

Check the milliamp (ma) draw on the backplate on your calculator and go from there.

BURNZEE
For your info: Rating: DC 6V, 3V == 2 Supply 0.06W (Since P = VI, current is 0.01amp)

The batteries that I now have in my calculator had only been slapped in last year.

I will have a look at my area's DSE' alkaline batteries, Graham :D

My calculator doesn't support solar power, Speedy :P

Cheers :)
Renmoo (66)
456549 2006-05-21 04:35:00 That 6V is for an external supply. It uses 3V, so things look even better. ;) Obviously, the cheapest type the manufactuters could buy that month were "Industrial heavy duty". Alkaline will last much longer. Graham L (2)
456550 2006-05-21 04:54:00 my old rule of thumb....Alkaline last 3 times long than "heavy duty" but only cost twice as much. tweak'e (69)
456551 2006-05-21 09:55:00 Cool! Thanks people! :D

Cheers :)
Renmoo (66)
456552 2006-05-21 10:44:00 I just popped a brand new pack of Energiser E2 Max's into mine, and then I left it somewhere. Grrr. Growly (6)
456553 2006-05-22 11:26:00 All good. I went to The Warehouse and bought 1 4 x AAA Energizer batteries pack for $7.50 bucks. I wonder why Bond and Bond is charging customers $10 buck for the same product. :illogical

Cheers :)
Renmoo (66)
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