Know your gear

Over time UPS batteries wear out. This leads to a loss of power capacity and runtime. Here are four reasons why you should only use genuine APC RBCs in your APC UPS:

Use of a non-APC battery will void APC's Equipment Protection Policy

APC recycles used batteries and almost 100% of the battery lead content is reused, protecting the environment. With each purchase of a genuine APC replacement battery, you get free freight back to APC for proper disposal of your old batteries (currently available in USA only.)

APC provides a 1-year warranty on each Replacement Battery Cartridge.

APC supplies the appropriate instructions for your UPS, along with any needed wires and connectors. All connections are made with high current gas-tight crimps for high reliability.

RBC35 only works with APC UPS Models BE350C, BE350R, BE350R-CN, BE350T, BE350U, BE350U-CN.
Availability: 60 units In Stock

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APC Replacement Battery Cartridge #35 - UPS battery - lead acid

This Item: APC Replacement Battery Cartridge #35 - UPS battery - lead acid


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APC RBC35 Replacement Battery Cartridge is rated 4.11 out of 5 by 37.
Rated 5 out of 5 by from process Battery works fine and eliminated my problem; expected and obtained. I also expected (as in the past) to find the label and prepaid postage needed to return the spent battery, but you have changed your program and I now have the choice to go to the recycling center or trash it; not a good choice for most. Suggets you reinstate the return policy.
Date published: 2010-10-01T00:00:00-04:00
Rated 5 out of 5 by from Easy Installation I purchased your APC Replacement Batteries for several of our units. The procedure to change out the batteries was very simple and my APC units were operational in just minutes. Also, thank you for your prompt service.
Date published: 2013-02-14T00:00:00-05:00
Rated 5 out of 5 by from Very Reliable I have used APC products for 20 years and have not had a loss due to power outages, spikes or any other problems due to electrical supply defects. I have replaced many batteries and used the exchange upgrade service a couple times. Thank you for your very high quality product and service.
Date published: 2015-04-03T00:00:00-04:00
Rated 5 out of 5 by from null I was amazed at the speed of service. I was waiting to get the tracking email, never did get one but did get the battery cartridge within a few days! GREAT!
Date published: 2015-10-24T00:00:00-04:00
Rated 5 out of 5 by from Much cheaper than a new UPS I bought replacement batteries for two UPS that were no longer holding a charge. With the new batteries they are now as good as new for a whole lot less than buying new ones.
Date published: 2010-04-11T00:00:00-04:00
Rated 5 out of 5 by from Excellent Products were delivered promptly and were installed easily. They both are working fine.
Date published: 2010-01-21T00:00:00-05:00
Rated 5 out of 5 by from No installation instructions This purchase did not solve my problem (the unit alarm is sounding) and I can't help but wonder if it's because of a procedural shortcoming because there was no installation guide as advertised. Is there a procedure to charge the battery? Is there a procedure to reset the alarm? I may never know...
Date published: 2010-03-10T00:00:00-05:00
Rated 5 out of 5 by from Works great! I was a little afraid that it might not work, but it was perfect. The previous battery was about 4 years old. Replacing the battery cost less than half of buying a new unit and I was so glad I went this way.
Date published: 2011-11-13T00:00:00-05:00
Rated 5 out of 5 by from Not Recognized I followed the instructions enclosed with the replacement battery, but the battery alarm keeps going off telling me to replace the battery. I am assuming the unit itself is bad. I recommend you buy a completely new unit and not just a replacement battery. Perhaps buying a replacement battery is better with the more expensive UPC systems. With this version, it isn't worth it. Just replace the whole thing!
Date published: 2011-08-20T00:00:00-04:00
Rated 5 out of 5 by from Good Purchase I thought the directions from the first time I bought one were more clear. Disappointed to see I cannot return it as I was able to last time. Otherwise, good purchase; came quickly; satisfied!
Date published: 2010-10-08T00:00:00-04:00
Rated 5 out of 5 by from excellent buy replacement battery to keep my ups be350 working to protect my PCs and appliances
Date published: 2012-12-08T00:00:00-05:00
Rated 5 out of 5 by from Easy battery replacement When we first received it I was mildly concerned that. since the old battery was out of the unit that I might have difficulty in connecting the battery to the correct wire. Not to worry, they had unique connectors.
Date published: 2014-01-24T00:00:00-05:00
Rated 5 out of 5 by from Good deal Easy to replace - clear instructions and markings on replacement battery. Easy to dispose of old battery using UPS self-print labels. A win, win.
Date published: 2011-11-24T00:00:00-05:00
Rated 5 out of 5 by from Back Up Battery I was in dire need for a replacement battery. I ordered and received the battery in lickety-split time. Thank you for such good support.
Date published: 2011-02-07T00:00:00-05:00
Rated 5 out of 5 by from Battery does the job everything was and continues to be satisfactory with this replacement battery
Date published: 2011-05-19T00:00:00-04:00
Rated 5 out of 5 by from No Worries We use APC's UPS units to protect all of our computers. We have never had a problem with one. They provide us with real peace of mind. It's great that replacement batteries are available AND that APC supports recycling of the old batteries. The weakness in the system is the arduous process of identifying the correct replacement battery.
Date published: 2012-02-13T00:00:00-05:00
Rated 5 out of 5 by from Replacement battery This was a no brainer to replace. APC tells it correctly and made my experience with this backup a real enjoyable experience. Recommend for anyone to use their products.
Date published: 2010-07-05T00:00:00-04:00
Rated 5 out of 5 by from Best Purchase Ever This Battery saved my computer from a sudden loss of electricity in my area. This happened twice on two consecutive nights and I was able to save my documents & shut the computer down while the New battery was doing all the work to mantein all my periferals running at the same time.
Date published: 2011-01-13T00:00:00-05:00
Rated 5 out of 5 by from great service as always This was a repeat purchase--we use your UPS throughout our company and occasionally require new batteries. I really like the ease of the recycling program.
Date published: 2012-09-01T00:00:00-04:00
Rated 5 out of 5 by from Better than getting a new one! This product worked perfectly in my Back-UPS ES 350. I'll definitely be buying another.
Date published: 2009-11-19T00:00:00-05:00
Rated 5 out of 5 by from Critical The battery is fine but you don't give battery voltages on any of your battery documentation or on the battery for that matter. The user needs that info to see if the battery is weakening or going bad or if the unit system itself is bad.
Date published: 2010-10-26T00:00:00-04:00
Rated 5 out of 5 by from APC backup I have been using APC battery back up power units for years. We have power pops here at least once a month. Until I started using the APC protection I had to replace several hard drives, printers, monitors and motherboards due to them being hit by the power off and on. Sometimes it would do it 3 or 4 times in a row killing my eletronics big time. The APC has saved me not only money to replace these things but also the loss of important data time and back aches. I am 71 and crawling around under the desk gets to me these days. I would recmmend this product in a heart beat.
Date published: 2011-10-31T00:00:00-04:00
Rated 5 out of 5 by from Excellent The reminder was essential since this product works so well Ordering was easy, delivery prompt, installation a breeze. It is running. Could there be an 'proper installation verification' routine?
Date published: 2010-02-15T00:00:00-05:00
Rated 5 out of 5 by from Battery replacement We have older UPCs and probably would be better to trade in older UPC for newer model but did not realize at time.
Date published: 2011-09-23T00:00:00-04:00
Rated 5 out of 5 by from Replacement Battery #35 We have many of these in our office. APC makes it ridculously easy to replace the cartrdige. They are a bit expensive but they work well. Many of ours have lasted beyond the expected use date. I would recommend highly.
Date published: 2013-07-29T00:00:00-04:00
Rated 5 out of 5 by from great buying experience APC did an excellent job at shipping my battery the next day. the shipping costs were very reasonable and they even accepted an online discount coupon. Great job APC!
Date published: 2010-02-25T00:00:00-05:00
Rated 5 out of 5 by from No Surprises The replacement battery cartridge was a drop in replacement and the instructions covered access and making the replacement very well. The best description of the replacement is, "there were no surprises". A well engineered product with maintenance an obvious part of that design.
Date published: 2012-02-03T00:00:00-05:00
Rated 5 out of 5 by from Great little battery Excellent battery at an excellent price. I purchased this as a replacement for a 5 year old battery. Working fine.
Date published: 2012-04-19T00:00:00-04:00
Rated 5 out of 5 by from Great Deal! This is the second APC battery we've purchased in the last year. They were for two separate UPS systems. This last one came with a free shipping deal and we've been VERY pleased with both purchases. The only difficulty I had was ordering this last one online and getting their advertised shipping offer. I had to go through their phone system and it even took their representative some "bypassing" to make it work. so the MERCHANDISE is wonderful. The website functionality needs some work!
Date published: 2013-10-04T00:00:00-04:00
Rated 5 out of 5 by from Battery Battery is defective and didn't work any better than the one I was replacing.
Date published: 2010-07-16T00:00:00-04:00
Rated 5 out of 5 by from Great Product Nice knowing I did not have to scrap out the entire unit. APC makes it easy to replace the worn out battery.
Date published: 2010-09-26T00:00:00-04:00
Rated 5 out of 5 by from APC replacement battery Unfortunately the new replacement battery failed after 3 weeks of use and now behaves as if it is an old battery that needs to be replaced. I had to buy a new one from the local store since this was purchased specifically for a scheduled I.T. event with new equipment for server accessory equipment back-ups. I am too busy with my work load to attempt to resolve this with APC online for a refund and basically resolved my situation by resorting to purchasing a new APC back-ups locally from another vendor. I realize time has transpired in posting this review since the unit was ordered and failed but the outcome remained one I thought should be shared. I will only purchase new APC units go forward.
Date published: 2011-06-14T00:00:00-04:00
Rated 5 out of 5 by from null Easy to find correct item to order online. Arrived in a timely manner.
Date published: 2012-01-10T00:00:00-05:00
Rated 5 out of 5 by from Good product After I was able to convince the tech on the phone that I just wanted a replacement battery, I ordered one, received it promptly, installed it and the APC unit is working well. I think the battery was a little expensive but works well.
Date published: 2011-05-08T00:00:00-04:00
Rated 5 out of 5 by from Disapointed I replaced two of these batteries. One is working OK and other keeps interupting its power output and resetting the PC. I can only use it as a surge protector and not battery back up.
Date published: 2011-11-07T00:00:00-05:00
Rated 5 out of 5 by from Very good Product The product is very good and works once installed. The directions (covering several APC Models) was a little confusing and it took some time to realize I was attempting it wrong. Once the confusion was solved the installation went smoothly.
Date published: 2014-10-04T00:00:00-04:00
Rated 5 out of 5 by from Bad Experience Ever since I installed the new battery the unit ocasionally starts beeping for no reason. Sometimes the unit just shuts down power to my computer totally. I am sorry I ever bought the battery!
Date published: 2010-12-04T00:00:00-05:00