How can a now if a battery is bad?

Easy to fit and easy to buy.

Hoveround MPV5 Wheelchair Batteries (Replacement)

Battery Sharks https://www.batterysharks.com > mpv5_b12-35_x2

The Hoveround MPV5 wheelchair requires 2 batteries - SP12-35 NB (12 V 35 AH). Please note that you need to use all existing cables and hardware from your ...
US$110.98 · ‎In stock

12V 35Ah SLA Battery Replacement for Hoveround MPV5

Walmart https://www.walmart.com > 12V-35Ah-SLA-Battery-R...

Product details · ML35-12 SLA is a 12V 35AH Sealed Lead Acid (SLA) rechargeable maintenance free battery, Pack of 2 - UL Certified · Dimensions: 7.76 inches x ...
Assembled Product Dimensions (L x W x H): 7....
Assembled Product Weight: 48 lb "); background-repeat: repeat-x; display: inline-block; overflow: hidden; position: relative; background-size: 14px 11.4px; height: 11.4px; width: 68px;">"); background-repeat: repeat-x; display: block; background-size: 14px 11.4px; height: 11.4px; width: 62px;"> Rating: 4.3 · ‎6 reviews · ‎US$149.99 · ‎In stock

Replacement Batteries for All Hoveround Power ...

ezmobilitybattery.com https://www.ezmobilitybattery.com > hoveround-whee...

Hoveround · Hoveround MPV4 Power Wheelchair Replacement Battery (2 Batteries) · Hoveround MPV5 Power Wheelchair Replacement Battery (2 Batteries) · Hoveround ...

Hoveround MPV5 12V 35Ah Battery (2 Pack)

Raion Group https://www.raiongroup.com > hoveround-mpv5-12v-...

This Raion Power RG12350FP mobility scooter battery pack is a direct OEM replacement for your existing Hoveround MPV5 batteries (12V 35Ah).
US$119.95 · ‎In stock

MyVolts 12V Power Supply Adaptor Replacement for Iomega ...

https://www.amazon.ca > MyVolts-adaptor-compatible-...
About this item · This 12V high-quality power adapter is compatible with the Iomega LDHD-UP External hard drive. · The plug fits a US 2-pin wall power socket.
Batteries included: ‎No
Connector type: 2-Pin Rating: 4.4 · ‎47 reviews · ‎$29.34 · ‎In stock

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  MyVolts 12V Power Supply Adaptor ... - Amazon.ca

  https://www.amazon.ca > Iomega-Prestige-External-repl...
  This 12V high-quality power adapter is compatible with the Iomega Prestige 1TB External hard drive. The plug fits a US 2-pin wall power socket. This power ...
  Hard Disk Size: ‎1 TB
  Connector type: 2-Pin Rating: 4.2 · ‎12 reviews · ‎$21.73 · ‎In stock

HQRP 12V AC Adapter for Iomega 1TB External Hard Drive ...

https://www.walmart.ca > HQRP-12V-AC-Adapter-for-I...
Buy HQRP 12V AC Adapter for Iomega 1TB External Hard Drive HD Adaptor Power Supply Cord [UL Listed] + Euro Plug Adapter from Walmart Canada.

Iomega External hard drive LDHD-UP Compatible Power ...

https://myvolts.com > product > Iomega_External-hard-...
Iomega External hard drive model LDHD-UP compatible power supply adapter charger.
US$16.49 · ‎In stock

ONN is Walmart's bargain basement brand of electronics all made in China at the lowest possible price point. They have failed within the warranty period, so return them for refund and buy a Microsoft or Logitech mouse. My Logitech is over 12 years old!

Your laptops cooling system is not good enough to keep it cool. It happens when a lot of dust stocks inside the fan area. If you have experience in opening laptops cover then open it and clean the dust. Else go to a professional technician.

if the battery will not hold a charge it is bad
buy the correct batteries and never ever NOS new old stock
by only correct type NNS, new new stuck ,gee wiz.
what is atlasbx

what APC UPS model is it.?
the rear or bottom white sticker shows model +_ SN
what is model
nobody can guess it.

Your volume potentiometer is bad and needs replaced.

Your question is impossible to answer, sorry.

The price varies depending upon whether the unit is new or used.

If it's new then it's going to be old stock as the model is obsolete and should be discounted heavily and supplied with a full warranty (unused cameras of all types tend to gum up, so old stock new ones may not work at all, also the batteries don't fare well when left uncharged for long periods).

If it's used, then it depends entirely upon the condition of the camera and of the supplied accessories. DV tapes and the batteries may be so heavily used that immediate replacements are required, you might also have to add the cost of a battery charger if missing. Check that all leads are present, some have generic connectors and are easy to replace at low cost, others may have proprietary connectors which are difficult/impossible to replace. It's a mechanically complex piece of equipment, so if it shows any signs at all of having been dropped then don't buy it. Don't buy it at all without thoroughly testing all functions and controls and then viewing the playback on a good quality external monitor with sound.

Finally, even if I could have suggested a price, it depends upon the country/state you're in and the currency in use, none of which you stated.

that is the inverter inside operating. the pitch should not be objectionable, but if it continues, you may wish to consult with the maker and ask if inverter is failing early

call powerware

PDA 2005 (as old as)
bad power supply ( weak)
bad battery charger chip inside.
this device has no value, really, why spend hard labor on such old tech? if compelled, buy 2 or 3 other dead 4360s ones, used off fleabay
to get one good one.
There is no PC made that will not fail.
consider this, if you had 2005 Toyoto car and the alternator went
bad , as all do about NOW. do you Boycott, Toyota.
nothing made by man lasts.
even earth is doomed, but not in 11 years.