For comparison, a HO 6.0 will absolutely destroy XC6.0 in terms of Watts is can provide, despite equal ENERGY (Watt-hours) and CAPACITY (Amp-hours), due to much higher CURRENT (Amps) 21700 cells can provide. A 2Ah 21700 cell can put out 30-40 Amps, while a 2Ah 18650 cell can put out 15-23 Amps. The bigger the cell, the higher the Amps it can source, and typically the higher the Amp-Hour capacity of the cell is. 21700 means it's 21 mm in diameter and 70 mm long. What is 18650, 21700? These are cell sizes, 18650 means the cell is 18 mm in diameter and 65 mm long. Maximum battery POWER OUTPUT is dependent on it's maximum current output and it's voltage. POWER is measured in watts, 1 Watt = 1 Volt x 1 Amp. Yes, the higher the Amp-Hours, the lower the maximum Amps the battery can supply. Its typically INVERSELY proportional to the cell capacity (Amp-Hours). The maximum amount of current (Amps) a battery can source is limited by it's chemical properties. Battery current (Amperes) is "FLOW RATE". So do not get hung up on Amp-Hours, there are other factors at play when it comes to performance.īattery voltage is "PRESSURE". So for example an M12 hackzall with a 6AH 12 volt battery will yield more cuts than a 18V hackzall with a 18v 1.5 Ah battery. 2x18 = 36Wh versus 2x12 = 24 WhĪ 6 Ah 12v battery has more stored energy than a 1.5 Ah 18 volt battery. A 2 Ah, 18 volt battery will have more stored energy than a 2 Ah, 12 volt battery. Battery energy is equal to it's capacity multiplied by it's nominal voltage. There are chemical and thermal losses at higher current draw.īattery ENERGY is measured in Watt-Hours or Wh. That means that if a battery can put out 1 Amp for 6 hours, the same battery can only put out 6 Amps for 45 minutes, and not one hour. In reality, the relationship is NON-LINEAR. This relationship is true only in ideal batteries. So a 6 Ah battery can source 6 Amps for 1 hour, or 3 Amps for 2 Hours, or 1 Amp for 6 hours. Amp-hours describes how many hours the battery can source certain current, with some caveats. Battery capacity HAS NOTHING TO DO with it's maximum output power - watts. Do not mix up Amperes with Ampere-Hours, they are totally different units. I am an electronics tech so I hope I know what I am talking about :)īattery capacity is measured in Ampere-Hours, or Amp-Hours also abbreviated as Ah or A*h. I will do my best to explain the differences between the batteries. I see a lot of false information going around, with r/milwaukeetool being #1 source of bad info. Before we start, let's get some terminology out of the way.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |