As the dimensions of the 12 Volt 7Ah battery and the 12 Volt 9Ah battery are exactly the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds. As long as the battery you want to replace has the same voltage and dimensions it is okay to substitute it with a different Ah replacement.
The previous battery would last longer than the new one . as the Ampere – hour rating ( which is the life of battery ) of your previous one is 7Ah whereas your new one is 5Ah . so if you are okay with Battery lasting time or the time of your use , Then you can go ahead . Hope it helps .
Any bigger and the battery will physically not fit into the device, as the physical dimensions will be different. The voltage of the original and the replacement has to be the same. In our example, a 12V 7.2Ah can be replaced by a 12V 9Ah for longer run time, but the battery must be 12V.
For example, A 12V 8Ah Battery is used to supply power to a system with a current draw of 0.5 Amperes.
A: No size or connection differences. The only difference is the 6aH will power your equipment longer before it gives out. Example: If the 5aH lasts one hour the 6aH will last 6/5ths of an hour or 1Hr 12mins. Helpful?
Simply put both versions will fit in your application and will work fine. As the dimensions of the 12 Volt 7Ah battery and the 12 Volt 9Ah battery are exactly the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds.
As long as the battery that you are substituting is the same voltage, you can use a higher capacity (higher Ah) battery than the original one. The reverse is also true. Using a battery with a higher Ah will improve the device’s running time on a single charge.
YES, ah has to be, at minimum , equal to asked rating. 9 amp hour will give ya slightly more capacity & burn ya lights without engine running a little longer. For example if it was a Fuel tank(electronic energy) 9litres of fuel instead of 8litres of fuel……
What is the real world difference between 9A and 12A batteries? Both weigh about the same but the 12Ah battery has higher density Samsung SDI cells at 3.1 mAh. This will hold ~discharge voltage at 35-36V for longer distances than the 9Ah battery.
12V 7Ah batteries feature physical dimensions of (L x W x H) 5.94 x 2.56 x 3.7 inches (~151 x 65 x 94 mm) and come mostly with F1 battery terminals, but also sometimes with F2 battery terminals – battery terminals are on the right side of the battery with a positive battery terminal being closer to the user.
Re: running 10Ah system with 9Ah battery
“Ah”AmpHour, is a capacity measure, your controller uses ” A ” amps. So you have a 9ah battery with a 10 amp controller.. this is ok.
As the dimensions of the 12 Volt 18Ah battery and the 12 Volt 22Ah battery are the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds. As long as the battery you want to replace has the same voltage and dimensions it is okay to substitute it with a different Ah replacement.
The Yuasa datasheet shows 7Ah at the 20hour rate, falling to 6.4Ah at the 10 hour rate. So that battery from a reputable manufacturer is rated to last 20 hours at 350ma, falling to 10 hours at only 640 ma.
You cannot connect batteries of different amp-hours in series with good results. We strongly recommend you DO NOT attempt to mix battery sizes (amp-hours) and connect together. Due to differences in battery management systems and battery cell counts, there may be a charging and voltage discrepancy between batteries.
Simple answer – No. Different types of battery have different maximum currents they can supply. This is limited by their ‘internal resistance. ‘
This means that a 2.0Ah battery pack can power the same tool for longer than a 1.0Ah battery pack can, assuming the current flow remains at 1.0A and there are no other differences. So, a 4.0Ah battery pack lasts twice as long as a 2.0Ah battery pack, right? Sometimes, yes. Other times, no.