Question about Honeywell Programmable Thermostat Heater

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Honeywell CT200A thermostat battery will not recharge.

Original battery holder and rechargable AAA battery replaced. New rechargable batteries used. Clock will operate but ONLY until battery runs down. The themostat is not recharging the battery.

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  • Honeywell Master
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Yes the battery charge circuit is burned out, you might as well replace the thermostat, parts will not be made to fix it unless it is still under warranty.

Posted on Nov 29, 2016

4 Suggested Answers

Therinnaiguy
  • 1420 Answers

SOURCE: locked themostat

go to this link, www.honeywell.com. In the search box, type in the model number.

Posted on Aug 07, 2008

  • 19 Answers

SOURCE: I want to install honeywell RTH 221 thermostat.Thr

If your old stat operated on high voltage ( anything over 24 volts) then the answer is no. However by adding some relays and a transformer you can use that stat.

Posted on Jan 15, 2010

dorothyslaug
  • 5 Answers

SOURCE: The middle of the touchscreen of my Honeywell

it not a touch screen, its manual old style honeywell, square box, not round, not rectanglur.

Posted on Nov 03, 2013

Testimonial: "It is a touchscreen. I have seen references to the battery being round and lithium CR2450; however, not sure if this is accurate. Does anyone know?"

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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My cordless phone Gigaset A49H is working well. I need to replace battery. Can I use AAA Ni-MH 900mAh 2V battery


if the volts of the old batery is the same with the new u can use it...no matters if the old battery was from lithion only or nikelioum / kadmium . u can use nikelium/magnisium batery too all rechargable are (sry for bad english)

Sep 28, 2015 | Siemens Gigaset A49h Cordless Phone...

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Touchscreen is not functioning


First try replacing the batteries. I have a slightly diff honeywell model and it takes 2 "AAA" batteries. The battery holder comes out the side of the unit, just press where it says press and pull out.

Sep 11, 2012 | Honeywell Rth8500d 7-day Touchscreen...

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It appears that my battery for these headphones doesn't hold it's charge....It's hardly been used Battery type.....BP HP550-11 for headphones Serial No MDR RF 840RK


Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make the charging cradle work with the new batteries installed in the Sony headset you MUST use the bottom part of the plastic battery holder piece on the BP-HP550-11 battery pack (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism inside the headset to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Dec 03, 2010 | Sony MDR-RF960RK Consumer Headset

1 Answer

I need rechargeaable battery for wireless sony stereo headphones mdr-rf860r


Since many Sony headsets use the BP-HP550-11 battery pack, I assume your battery pack is the same. If not, I assume whatever battery pack your headset came with, it is some type of plastic holder that holds two batteries together. Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make them work in the Sony headset you MUST use the bottom part of the plastic battery holder piece (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Nov 19, 2010 | Sony MDR-RF960RK Consumer Headset

1 Answer

I need a new battery (BP-HP550-1 1/2.4V 550mAh) for my sony headset. Regular batteries will work (non-rechargeables and rechargeables) but I found that the cradle will not recharge the rechargables only...


Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make them work in the Sony headset you MUST use the bottom part of the plastic battery holder piece (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Nov 01, 2010 | Sony MDR-RF960RK Consumer Headset

1 Answer

I have searched the web for this battery BP-HP550-11/2.4V (two batteries), to replace the ones in our Sony wireless stereo headphone system model MDR-RF970RK.


Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make them work (be able to be charged using the cradle) in the Sony headset you MUST use the bottom part of the plastic battery holder piece (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism inside the headset to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Sep 22, 2010 | Sony MDR-RF960RK Consumer Headset

1 Answer

Sony batteries BP-HP550


Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make the charging cradle work with the new batteries in the Sony headset you MUST use the bottom part of the plastic battery holder piece (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Jul 27, 2010 | Sony MDR-RF960RK Consumer Headset

1 Answer

Where can i buy a sony battery bp-hp550 1 1/2 4v


Even though you can use regular AAA batteries (that you would have to replace often), there is a huge convenience factor with using the charging cradle that comes with the Sony headset. A solution I found was that I ordered some 550 mAh AAA batteries through Ebay (they came from England and cost me $8 total for four batteries). To make the charging cradle work with the new batteries installed in the Sony headset you MUST use the bottom part of the plastic battery holder piece (all you need to do is peel off the BP-HP550-11 label and the bottom half of the plastic battery holder piece slips off of the Sony batteries). Then just slip in the new AAA batteries into the plastic battery holder bottom and then insert into the headset. The reason why you must use the bottom of the battery holder plastic piece is because the plastic piece pushes on a little switch. This switch activates the charging mechanism to enable the cradle charger to charge the batteries.

NOTE: I am not an electronics expert so I do not know if there would be any problem using other rechargeable AAA batteries (with higher mAh ratings). So I decided to be safe than sorry and ordered the 550 mAh batteries through Ebay.

Jul 11, 2010 | Sony MDR-RF960RK Consumer Headset

2 Answers

Flashing battery symbol


I had this same problem today.  I called Honeywell and they said the flashing broken battery symbol may mean low batteries, or it may mean the battery type is incorrect.  They recommend only non-rechargeable alkaline batteries.  I was using rechargeable NiMH batteries.  Even though they were fully charged, I had the flashing battery symbol and the thermostat relay would not work.  I replaced with alkaline, the flashing battery indicator went out, the thermostat works again.
Odd that it worked for 3 months on the rechargeables after first install. I did notice the broken battery symbol came on after the first few days, but I checked the battery charges and they were good, so I disregarded the symbol until the thermostat stopped working today.  Apparently there is something about the NiMH performance characteristic that the thermostat doesn't like.

Jan 31, 2009 | Honeywell Programmable Thermostat Heater

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