Breakaway Kit Replacement 12 V Battery
(116 reviews)
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Breakaway Kit Replacement 12 V Battery
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Hopkins Accessories and Parts
- Trailer Breakaway Kit
- 12V Battery
- Hopkins
Hopkins Replacement 12 Volt Battery for Trailer Break Away Kits.
- Measures 3-1/2" L x 2-3/4" W x 4" H
20008 Breakaway Kit Replacement 12 V Battery
Item # HM20008
California residents: click here
Video of Breakaway Kit Replacement 12 V Battery
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Hopkins Breakaway Kit 12 V Battery Replacement Review
Hey everybody, Ryan here at etrailer. Today we're gonna be checking out the Hopkins replacement battery for trailer breakaway boxes. Trailer maintenance is often one of those things that just gets overlooked, you know, you don't use 'em all the time. In some cases they'll sit outside and the breakaway battery being charged and operating correctly is critical because you're gonna need this in those situations where you we're to come accidentally disconnected, you know, and what would happen is your breakaway switch would get pulled, the battery would send power back to your trailer's brakes, helping the trailer to slow down and kind of get things back under control. So, you know, a lot of times you're never gonna run into that situation, but when you do or if you do, you want everything to function properly. So like I said a lot of times this just kind of just gets overlooked.
But it's a critical part of your trailer's braking system. Our trailer today is a perfect example of that, you know, a guy bought it used sitting around for a while and a lot of the stuff wasn't working. The wiring, the brakes, a lot of components needed fixed and that's what we did. So right now we have the original battery in there and if we test it, our box has a test function here, we get no power at all, nothing lights up. We actually installed a new breakaway switch for him too which is another way to kind of test it.
So if the battery was good, when we pull this it should light up red and it's getting nothing. So we know this battery's dead. A lot of times, you know, you can try to charge 'em but sometimes you're just too far gone and that was a case with this one and that's why we are replacing it. The way you replace these, super easy, you open up your box and we'll just have a couple of wires there, power and ground. That's really all there is to it to get 'em back up and going.
And this is gonna work with a ton of the breakaway boxes out there. They're all pretty generic in terms of size and as long as your battery will fit in the box and it's the proper rating, you'll be in good shape. So this is a 12 volt battery, it's 5 amp hours and that's gonna be what the majority of the batteries are that are out there on trailers. In terms of how big this is gonna be, it's gonna be 3-1/2 inches long, 2-3/4 of an inch wide and 4 inches high. Like I said, you know, almost a perfect matchup with just about all the other batteries out there.
So this is kind of example of the old one compared to the new and these things just pop in and that's really all there is to it. So when you do get it replaced, not a bad idea just to check it and make sure everything is indeed working properly. So if we test it now, we get that green light. Really hard to see on a sunny day, but it is green. Compared to some of the other ones available this one here is a Bright Way Group battery and really not a whole lot to compare to be honest with you. They're same size, same ratings are both a non spillable lead acid type battery. So you know, you really couldn't go wrong with either one of them. Other than that, at the end of the day this will be a great way to kind of get your trailer up and going again without having to get a whole entire new breakaway box. You know, if your existing one is in good shape no reason to replace that whole thing when you can just get a new battery for it. And that'll finish up our look at of the Hopkins replacement battery for a trailer breakaway boxes.
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Customer Reviews
Breakaway Kit Replacement 12 V Battery - HM20008
Average Customer Rating: 4.9 out of 5 stars (116 Customer Reviews)
by: David 04/04/2024
It was quick and easy and a perfect rep lacement
by: Guy 12/27/2023
etrailer.com Awesome, they got my trailer on the road again, Very Happy with there services & a fast response
by: Marc 02/12/2024
fit perfect
by: Harry 04/10/2020
Tara set up the order for me and had it in the mail that afternoon. It arrived a day ahead of time no problems. It was fully charged right out of the box. It fit right into the charging system box just as Tara said it would. The brakes on my Worthing double axel motorcycle trailer engaged and held till l reconnected to runaway cable. I had been trying to locate a TAP replacement battery and was informed by Tara that TAP had been bought out by Hopkins and this was the same battery with their name on it.
by: Michael B.05/23/2015
Perfect replacement of my original battery. Exact same size as original battery, allowing the battery to fit in the plastic receptacle box that protects the battery and charger and mounts to the trailer.
Michael B.
6/17/2016
E-Trailer is GREAT. The products I purchased a year ago continue to work perfectly. I will remain a loyal customer always!
by: James 09/25/2023
Fast and accurate
by: Bert02/19/2017
Exact replacement for my trailer breakaway emergency brake. Wanted a battery designed for transportation instead of a cheap UPS battery. eTrailer always has great service and web documentation so you can't go wrong.
by: Kevin L.05/15/2015
Just shows it pays to purchase from the OEM distributor. This batttery was the exact replacement and fit perfectly in the housing. I had looked at some cheaper replacement models, but they were just a bit larger, and would have required modification to fit. Using the proper size required little effort on my part, and the process was completed in less than 5 minutes.
Kevin L.
6/6/2016
Still working perfect after a year....including setting with no use during a Michigan winter!!
by: Frank12/10/2017
this battery was just what I needed to replace one that was many years old . It has the ability of stopping a runaway trailer by applying the brakes . with out it the trailer would travel on down the road ,,,,,,,
This is a first class battery ,,,,,,I contacted several options from the manufacturer to other listings
these folks are the ones to deal with !!!!
don't buy from any one else !!!!
by: Ron H07/18/2012
Seems to be a great battery and fits right in the battery box of my haulmark motorcycle trailer. The hitch and coupler locks are great. They too fit perfectly and so much easier they are keyed the same. Exremely fast shipping and great communication by email from etrailer. I ordered another part from another company two days before ordering the battery from etrailer. It's still not here. I highly recommend etrailer. I will not get any trailer parts or accessories anywhere else from now on.
by: JMat08/19/2013
Exact fit for the TAP battery #20008 trailer brake-away emergency braking system. The battery box is made to ONLY fit this size battery! It also came fully charged and we put the trailer on the road the day I received it.
Thanks for a quick delivery and perfect fit!!
by: Ken J.06/21/2012
I needed a new 12 volt battery for my utility trailer break-away brake. I found what appeared to be a direct replacement on etrailer.com based on the good description and high resolution picture on the website. I placed the order and the battery appeared two days later. The battery was exactly what I needed. The quality was good and the size was as advertised. The terminals were the right size and in the right places. Based on service like this, etrailer is the first place I look for my trailer and towing needs.
by: RK07/01/2014
Item arrived already at peak charge and ready to install. This name brand battery was more money than other's but I didn't want to risk a breakaway with a battery I've never heard of. I paid allot for quick delivery but that's the way it goes. I needed it asap and it was received on time. So overall a good purchase.
by: Dennis C.06/11/2016
Replacement battery for emergency/breakaway brake on car trailer... works well.
by: Michael B.05/23/2015
Perfect replacement of my original battery. Exact same size as original battery, allowing the battery to fit in the plastic receptacle box that protects the battery and charger and mounts to the trailer.
by: Denny M.04/01/2014
I recently ordered a replacement battery for my deck over trailer. The order was placed and the battery was shipped immediately and received in excellent packing and condition. I would recommend etrailer to anyone. Thank you, Denny
by: Angus D Wright06/10/2011
I was delighted with the arrival of the break-away battery. It was exactly as described and was charged and ready for use. My greatest appreciation goes to etrailer for the rapid response and arrival of the battery. I requested standard shipping. etrailer offered, without additional charge, priority shipping getting the battery to me within two days. WOW!!!
by: BJ Brammer09/03/2016
Great Service and really fast shipping!
perfect replacement.
Bj B.
9/3/2017
Still doing the job it is supposed too!
by: Don B.01/10/2012
I had a difficult time resourcing a 12 V Battery, for my trailers brake-a-way system locally.
I had previosuly ordered from etrailer, and was very pleased with thier service, and care to communicate the leadtime for delivery.
Great customer service!
by: Charlie m07/11/2013
Not using this battery as a breakaway power source; using it as a battery to start a 50cc scooter! works great! A lot less money than buying a OE part!
by: Marsh. A. 02/05/2017
Haven't installed it yet but arrived right on time and is exactly as described. I have ordered a number of things from etrailer over the years and always am very happy. Their website with all of the reviews, videos, install instructions etc is really great. Keep up the good work guys.
by: deb10/11/2017
So happy to find the exact battery I needed that fit the trailer braking system. I was worried that it would be hard to find the funky size for this older system. Came right away, too. Thank you.
by: Steve01/12/2015
Direct replacement for my Triton Prestige brake-away system. Second purchase I made from etrailer in the past year. Great prices and reasonable shipping costs.
by: RDP04/16/2016
Good internet description on etrailer.com and an exact fit matching specifications of the battery being replaced. Good price, prompt shipment, and well packaged...what more could you ask for.
by: Steve S.02/03/2015
Bought wheels and breakaway battery for my trailer, everything looks great and was shipped quickly. Thank you for great service
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See what our Experts say about this Hopkins Accessories and Parts
- Replacement Batteries For The Hopkins Engager Break-Away SystemIf you have the Hopkins Engager Break-Away System, we have the Breakaway Kit Replacement 12 V Battery # HM20008. This battery measures 3-1/2" L x 2-3/4" W x 4" H. Simple install, just line up the negative and positive component with the battery.
view full answer... - Parts Needed to Add Rechargeable Breakaway Battery to Gooseneck TrailerThe breakaway battery that is designed to work with the Hopkins Engager Breakaway Box # HM20121 is the Hopkins Breakaway Kit Replacement 12V Battery # HM20008. To provide you with both the Hopkins Engager Breakaway Box # HM20121 and a breakaway battery, I recommend going with the Engager Trailer BreakAway Kit # 20099. The battery included in the kit is a 12V, 5-amp hour battery that is designed to power the trailer's brakes for 15 full minutes in a breakaway situation. A break-away switch...
view full answer... - Recommended Replacement Battery for Tekonsha Trailer Breakaway KitFor a replacement battery for your Tekonsha trailer breakaway system I suggest their Replacement Sealed Lead Acid Battery # TK2023. Please refer to the linked video.
view full answer... - Troubleshooting 2002 F-250 Towing Horse Trailer with Working Exterior Lights but No Interior Lights It sounds like the interior lights on your trailer are powered through the 12 volt circuit on your Ford's 7-way. So, start by testing to make sure that pin is active. On a standard RV style 7-way, this is located at the 1 o'clock position. I've attached a diagram for visual reference. Using a tester like # PK12741 would be the easiest. You could also simply have a case of corrosion on/in the connectors that is preventing the +12V auxiliary power from reaching the trailer. If this is the...
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- Replacement Battery for Hopkins Engager # 20099 Trailer Break Away KitIt sure can! The replacement battery is part # HM20008. I've linked you to some product description videos and some FAQ articles that I hope you'll find helpful.
view full answer... - Troubleshooting Trailer Breakaway Kit on Trailer with 2016 Ram 2500Typically, a trailer breakaway kit will have enough power to engage the trailer's brakes for fifteen minutes once the pin is removed. So, if the pin was removed while your vehicle was idle, then it's possible that the battery had died before getting back on the road during your trip. This would explain not noticing the brakes locking up while driving, even though the pin was not present. If you need a replacement battery, you can use the Hopkins Breakaway Kit Replacement 12V Battery #...
view full answer... - The Charge Light for Engager Trailer BreakAway Kit Stays On All the TimeThe fact that it is staying on even when the trailer is not connected is strange. According to the installation details linked for reference, if the trailer is connected to the tow vehicle, the yellow charging light will always be on. The light stays on just to show that the unit is connected and has power. Since it is staying on, it has to be drawing power from the break away battery. The box is water resistant but not water proof. Moisture or corrosion build up in the box or wiring could...
view full answer... - Hopkins Breakaway Battery Charger Output Specs and Compatibility with 12V 5aH BatteryThe Hopkins Trailer Breakaway Kit Battery Charger # 20011 has a power output of 2.5 amps according to my tech contact at the manufacturer. It basically gives a maintenance charge to the battery. It is designed for use with the 12 volt 5 amp hour battery traditionally found on single and tandem axle trailers like # HM20008 or # TK2023. The larger battery you referenced in the video is needed on larger trailers like triple axle applications but this charger will work perfectly with the...
view full answer... - Are the Terminals on the Hopkins Trailer Breakaway Kit Battery F1 or F2 TerminalsFrom what I understand, an F1 connector is 0.187 inches wide (3/16 inches). I went out to the warehouse and pulled a Hopkins battery, # HM20008, to measure the terminals. They are indeed 0.187 inches wide. That would make them F1 terminals.
view full answer... - Troubleshooting UPG Breakaway Kit To Allow Trailer Transport To Service CenterYou can get your trailer to a repair center without a breakaway battery working. You will just need to disconnect the power going to the switch for the pin prior to the pin. This will disengage your breakaway system until you can get it looked at. If there is still power going to your brakes, there is a short somewhere else in your system. Another option is to get the kit and replace it yourself. If you just need a battery, I recommend the Breakaway Kit Replacement 12 V Battery # HM20008....
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- Hopkins Engager Breakaway Kit Replacement Battery and Charger for Flat/Dead BatteryWith a flat/dead battery the trailer brakes should not default to braking but the exact opposite. When a trailer breakaway battery is flat/dead then there should be no difference in braking function at all. The trailer brakes should work as designed on the trailer, the only issue would be if your trailer where to disconnect the pin of your breakaway system would get pulled and no power would be applied to the brakes. Basically you'd have no brakes on a runaway trailer versus having that...
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- Can a Larger Breakaway Battery Be Used to Operate Interior Lights On a TrailerYou will want to use a separate, standard 12 volt deep cycle trailer battery to operate the interior lights. You will NOT want to use the trailer breakaway battery. The breakaway battery is not designed to power other trailer accessories or lighting, it is just designed to operate the breakaway system. The DOT regulations state that a trailer breakaway system needs a dedicated battery. You will be able to maintain a charge on the separate trailer battery by running a 10 gauge power wire...
view full answer... - Replacement Breakaway Kit W/ Switch for a Pre-2000 Big Tex TrailerYes the Bright Way Trailer Breakaway Kit with Breakaway Switch, 0.5-Amp Charger, 5 Ah Battery, and Wire Loom # BRW99FR is a great replacement for your current breakaway setup. This kit comes with a breakaway switch, a 0.5 amp charger, a 5-amp hour battery, a battery box, wiring and wire loom.
view full answer... - Best Way To Charge A Breakaway Battery and a Winch BatteryUsing the breakaway battery charger to charge another battery on the trailer is not recommended. The larger battery you are using to operate the trailer winch would take an extremely long time to charge with a breakaway charger and would likely never charge fully with the limited amount of time the trailer is connected to the vehicle, even if towing long distances. The breakaway battery may not be charged sufficiently in this situation either. The best bet for charging the winch battery...
view full answer... - Charging Trailer Mounted Battery through 7-Way Connector on 2011 Toyota 4RunnerA small breakaway battery such as # HM20008 can be charged from the 12 volt circuit from the 7-Way connector. You could connect the 12 volt circuit directly to the positive battery terminal. But a larger battery, such as a car battery mounted on the trailer, can only receive a maintenance charge for the 12 volt circuit. This is because the wiring for the trailer connectors is too small and the vehicle alternator is not strong enough to push back the amperage required to charge up a trailer...
view full answer... - Troubleshooting EOH Trailer Brakes on Tandem Gooseneck TrailerNot all trailer brake controllers are compatible with electric-over-hydraulic (EOH) actuators because these present a very different electrical load to the controller than electric drum brakes. Some controllers will have a menu option to let you choose EOH operation but not all have this capability. You will want to make sure both of your vehicle's brake controllers are indeed EOH-compatible; many aftermarket units like the Prodigy P2 # 90885 are. A dead breakaway battery would not cause...
view full answer... - Recommended Charger for Maintaining Automotive BatteriesFor a car battery you want to use a charger designed for that application, such as one of the CTEK units shown on the linked page. For example, their MULTI US 7002 12-Volt Universal Battery Charger # CTEK56353 is a multi-step, fully automatic charger with pulse maintenance. This can both charge a depleted battery and maintain a charged one. Charging time for 80% charge of a 14-Ah battery is only about 2 hours. I have owned one of the CTEK chargers for several years and it does a good job...
view full answer... - Comparing the Curt, Tekonsha, and Hopkins Breakaway BatteriesCan you please provide me with the exact part numbers that your are referring to?
view full answer... - Brakes On A 2017 Jayco Fifth Wheel Pinnacle Dont lock Up After Pulling The Break Away SwitchOn your 2017 Jayco Pinnacle Fifth Wheel the break away switch should have it's own battery. If it is only reading 3-4 volts when you pull the break away switch the battery may need to be replaced.
view full answer... - Replacement Battery for Hopkins Breakaway Kit 20400We do offer a replacement battery for the Hopkins Engager Push-To-Test Trailer Breakaway Kit with Built-In Battery Charger part # 20400, it's the Breakaway Kit Replacement 12 V Battery part # HM20008. Please note, you'll need to test the battery when detached from the trailer. You can also use a volt meter to test the battery directly. I am not sure of the exact issue you're describing but I have attached a few help articles below that go over testing the trailer brake controller.
view full answer... - Replacement 5 Amp/Hour Breakaway Battery For FM1250 5.0AHYou will want to replace your backup battery with another 1250 5 amp/hr battery. This will ensure you get the correct size to fit inside your battery case. We currently have the 3 options. Hopkins # HM20008 Curt # C52023 Bright Way # 3801250
view full answer... - What Powers the Interior Light of a Horse TrailerThe interior lights of your trailer would either be powered by an auxiliary battery in the trailer or straight from the 12 volt accessory circuit of the trailer connector on your tow vehicle. Your best option would be to try and trace the wiring of the lights back to where they end on your trailer to find out how they power. Most likely they get power from the trailer connector. You will want to check out the wiring diagrams in the link I attached to find out which style of connector...
view full answer... - Troubleshooting Hopkins Trailer Breakaway System Not Charging BatteryFirst you will want to check the wiring of the Hopking Breakaway # 20099. If the black wire from the breakaway box is not receiving 12 volts from the 7-way on your tow vehicle it will charge the battery. You will want to use a circuit tester like part # PTW2993 to test this wire for 12 volts when the vehicle is connected and running. If there is no voltage there then you will need to trace this wire back to where it connects to your vehicle wiring and make sure it is connected securely...
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- Replacement Battery for Hopkins Trailer Breakaway KitIf you have a Hopkins Trailer Breakaway Kit like part # HM20001 then the battery can be replaced using the Breakaway Kit Replacement 12 V Battery part # HM20008.
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Harry
4/11/2021
No problems with this battery or keeping it charred. If I do not use the trailer for a time I keep an eye on the charge light if it goes from green to yellow I just plug the trailer into my truck connector and let it charge for an hour or when it returns to green it’s good to go!!