What Amp Hour Rating Is Required For A Trailer Breakaway Battery
Updated 12/15/2025 | Published 11/15/2024
Products Featured in This Question
Question:
I have a 6x10 enclosed cargo trailer what ah battery kit will be better the 5ah or 10ah it’s a single axle and I am going with electric brakes on on it 3500 lb axle
asked by: Jared H
Expert Reply:
Hi Jared,
A 5 amp hour breakaway battery is typically used for most single and tandem axle applications. For triple axle applications you'll need the 10 amp hour battery to ensure each brake assembly is getting enough power to last for 15 minutes on full power in the event of a breakaway. You can still go with the higher capacity 10 amp breakaway battery # 3802311 if you want, it's just not necessary for you application. If you want to go with a 5 amp hour battery instead the # 20099 we talked about before would still be an compatible option for your 3" tall trailer frame.
Product Page this Question was Asked From
Brightway Trailer Breakaway Kit w/ Charger, LED Tester, and 10 Ah Battery - Top Load
- Trailer Breakaway Kit
- Kit with Charger
- Top Load
- Single-Axle
- Tandem-Axle
- Triple-Axle
- LED Indicator
- Electric
- Battery Included
- 10 Ah
- 48 Inch Long
- Bright Way
more information >
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Kate F.
12/15/2025
Hey Jared, how did things turn out with the breakaway battery for your 6x10 trailer? Did you end up going with the 5Ah or the 10Ah kit? Your update could make it easier for others deciding between those two options.