Battery power question.

[BMG50]

I am building a 1/20 scale Covenanter and want to use a smaller battery to control a server and electronics which uses a standard PP3 9 volt battery which is bulky, I have found an ideal battery a 9 volt L1022 10A. much smaller in size at 10mm di and 22mm long, would this smaller battery be on par with the larger PP3 or will it drain very quickly.

[Jofaur86]

Hello, if I understand correctly? would you like to replace this PP3 model with this L 1022? as soon as the voltage remains the same, the capacity ( Amperes, or mah ) just changes the size and the duration of use

[BMG50]

So the L1022 at 10A would last longer than a PP3 at 500mil A.

[Son of a gun-ner]

Don't be misled by the 10A, I've noticed some have it as A10, I've a feeling it's a code for the same type of battery made by someone else.
It is NOT an indicator of how many amp hours it will last.
I find that quite misleading.
Looking at one make of these batteries, they say it's compatible with L1022 and 10A.
I very much doubt a battery that size will be as much as 500mah. To be a 10 ah battery, which would be 20 times the ah of your PP3, it would be huge.

[BMG50]

So it will be low mil A say 100, not staying power or not, anyone confirm it or shall i measure it.

[Jofaur86]

Indeed, I had not said anything, but as "son of a Shooter" would be surprised that 10 A in this type of alkaline battery? maybe with a Lion type, and again?? will be 7.4 or 11.1 volts, but not 9 volts, and the size will not necessarily be ideal?
the more capacity a battery has (Ah) the bigger it will be, you don't put 100 liters of water in a 10 liter tank.

[Jarlath]

A typical PP3 9V battery has has numerous designations:
ANSI Standard
- 1604A (alkaline),
- 1604D (carbon-zinc),
- 1604LC (lithium),
- 7.2H5 (nickel-metal hydride),
- 11604 (nickel-cadmium),
- 1604M (mercury-oxide).
IEC Standard
- 6LR61 (alkaline),
- 6F22 (carbon-zinc),
- 6KR61 (nickel-cadmium),
- 6HR61 (nickel-metal hydride).

Typical capacities...
- 550-600 mAh (alkaline),
- 400 mAh (carbon-zinc),
- 1200 mAh (non-rechargeable lithium),
- 175-300 mAh (nickel-metal hydride),
- 100-120 mAh (nickel-cadmium),
- 200-650 mAh (rechargeable lithium)

Your replacement suggestion has the following callouts for sizes: L1022, GP 10A, 10A
Typically they have 38-60mAh capacity

[BMG50]

Thanks for your answers, i was also wondering is three CR2 or CR123 would be a better choice for 9v. The CR2 and 123 would give much more endurance, any issues with these batteries.

[Jofaur86]

Hello, the time of use of a battery, or batteries, depends on its capacity, expressed in Mah, and this for an identical voltage, also also on the use of the model, on ground, flat, uneven, grassy, speed, etc

[Jarlath]

Thanks for your answers, i was also wondering is three CR2 or CR123 would be a better choice for 9v. The CR2 and 123 would give much more endurance, any issues with these batteries.

CR12 are coin style batteries and will not have the MAh you are looking for.

CR123/CR123A are only 3V ea, but will have 1400-1500 MAh capacities. You would need 3 of them to get the 9V that your tank requires
Also, R123 are fairly costly.

However, if you are concerned about bulk, 3 CR123 batteries are bigger than a single PP3.