40 Amp draw from batteries to run Microwave?
When running my microwave on high I noticed the battery voltage dipped to 11.6 and the input side of the 2,000 Samlex inverter was only drawing 40 DC amps or so. I didnt think that 4 T105's voltage...
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The 11.6v is quite reasonable on four 6s. The 40 amps reading is faulty. Use the 10 to 1 rule for inverter draw.
Say the MW is "1000w" then on the back it will say input required is say 1400 watts. So that means it will draw about 140 DC amps. This will create a goodly voltage drop to that 11.6v.
MW "on high" will draw the same as "on low" because it draws the same but cycles on and off with more time off at low. An exception to that is the Panasonic Inverter which will draw fewer amps at a lower setting according to owners posting on here.
Note also if you have a MSW inverter, it will take less power from the MW even on high, so it will take longer to heat something, but also will draw fewer amps than a PSW inverter would with the same MW.
That does not apply to resistive loads such as a kettle or toaster, which will have the same amps draw from PSW or MSW inverters
Say the MW is "1000w" then on the back it will say input required is say 1400 watts. So that means it will draw about 140 DC amps. This will create a goodly voltage drop to that 11.6v.
MW "on high" will draw the same as "on low" because it draws the same but cycles on and off with more time off at low. An exception to that is the Panasonic Inverter which will draw fewer amps at a lower setting according to owners posting on here.
Note also if you have a MSW inverter, it will take less power from the MW even on high, so it will take longer to heat something, but also will draw fewer amps than a PSW inverter would with the same MW.
That does not apply to resistive loads such as a kettle or toaster, which will have the same amps draw from PSW or MSW inverters
