Anyone know of a UPS that behaves well with no or a bad battery? The main requirement is that no matter how long it's run without a battery it should perform no worse than a power strip. This means that if the power flashes the formerly on UPS should be on again. If it was off it should be off again. I can't justify using or deploying UPS that create more problems than they solve.
I've tested several APC and Minuteman UPS units 500VA - 1500VA. They all work fine with a good battery but without a battery they suffer from any number of reliability problems that cause high risk of outage to connected equipment. Some fail to detect a bad battery and cause a UPS outage every time a voltage fluctuation makes it switch to battery. Some are too meek and fail to convince the operator that anything is wrong. Some require a battery to power on. After a power flash some stay off. Some power back on to an invalid power condition which may supply or lock out power. None are more reliable than an el-cheapo power strip. After getting rid of all mine I found that real outages were less common than UPS outages. I didn't gain anything by reducing power outages in the middle only to get more at the end.
Do UPS manufacturers really consider that failed batteries are too rare an occurrence to design properly for it? Do they think that a constant barrage of UPS caused outages is acceptable when the battery fails? Are they so desperate to prop up battery sales that they intentionally design them to ravish us with bad power if we don't replace early and often and avoid used batteries?
Battery sales might be better if they avoided more outages than they cause. Is there any UPS manufacturer with a clue?
I've tested several APC and Minuteman UPS units 500VA - 1500VA. They all work fine with a good battery but without a battery they suffer from any number of reliability problems that cause high risk of outage to connected equipment. Some fail to detect a bad battery and cause a UPS outage every time a voltage fluctuation makes it switch to battery. Some are too meek and fail to convince the operator that anything is wrong. Some require a battery to power on. After a power flash some stay off. Some power back on to an invalid power condition which may supply or lock out power. None are more reliable than an el-cheapo power strip. After getting rid of all mine I found that real outages were less common than UPS outages. I didn't gain anything by reducing power outages in the middle only to get more at the end.
Do UPS manufacturers really consider that failed batteries are too rare an occurrence to design properly for it? Do they think that a constant barrage of UPS caused outages is acceptable when the battery fails? Are they so desperate to prop up battery sales that they intentionally design them to ravish us with bad power if we don't replace early and often and avoid used batteries?
Battery sales might be better if they avoided more outages than they cause. Is there any UPS manufacturer with a clue?
