BX1500LCD vs. BX1500G - HEAT ISSUE/ENERGY CONSUMPTION

[BillP]

WHY DOES APC MODEL: BX1500LCD PRODUCE SO MUCH HEAT VS. THE NEWER APC MODEL: BX1500G_?

Has anybody had the same experience I have had with the older APC Model: BX1500LCD producing a lot of heat at idle/no load conditions, vs. the newer APC Model: BX1500G, not having the same condition, running much cooler (almost room temperature)?

I am in the process of replacing twenty (20) APC Model: BX 1500LCD with the newer APC Model: BX1500G. Not only have I found ALL twenty (20) APC Model: BX1500LCD produce a lot of heat just plugged in, but also consume up to 40 watts of electricity each just plugged in. Whereas, I have found that the newer APC Model: BX1500G units are just the opposite. They tend to run much cooler (room temperature), and consume only up to 10 watts of electricity each just plugged in. This can save a considerable amount of electricity in a month's course.

I've also noticed that the life expectancy of the user replaceable batteries in the APC Model: BX1500LCD are shorter, likely due to the "heat" being produced by the internal circuits. In fact, some APC user replaceable batteries have failed within a two to three year period.

Can anyone confirm my findings, and /or add their input as to why there is such a difference in the amount of heat being produced in the APC Model: BX1500LCD and not the newer APC Model: BX1500G?

Thank you.

[BillP]

RESPONSE_

I understand the revision regarding the cooling fan. However, the cooling fans have never come "on" except during a power outage. Therefore, this doesn't explain why APC Model BX1500LCD normally runs so warm on the exterior plastic housing compared to the newer APC Model BX1500G. Moreover, APC has discontinued production/availability of their APC model BX1500LCD after such a short period of time. Were there heating and/or other issues being problematic overall that APC discontined this model? Additionally, I never have received a straight answer from APC regarding these two issues.

[BillP · Accepted solution]

just my two cents..these two devices are two completely different hardware platforms so many of the internal workings are different which i am sure are smaller and more efficient to ensure the device runs cooler/greener. i am not sure if this is only Smart UPS or if it also applies to the Back UPS G models but I know those allow the UPS to bypass the Automatic Voltage Transformer, even when AVR is not in use (boosting/trimming voltage). I dont think the older models did that, which generates more heat.