Dual 12V 105Ah LiFePO4 Battery Kit for Dump Trailers – 210Ah High Output Power for Hydraulic Systems
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We offer the following methods of delivery:
- Same day Freight Shipping when ordered Mon-Fri before 12pm central time. (excluding holidays)
- Pickup from our Mandeville, Louisiana warehouse
- In some cases, free shipping - please contact us: sales@primarymover.com or call 985-888-6554
Dual Battery Power Solution for Dump Trailers
210Ah High-Output LiFePO4 Setup – Built for Real Dump Trailer Performance
If you’ve ever dealt with slow dump cycles, weak lift power, or batteries dying mid-job — you’re not alone.
Most dump trailer issues don’t come from the hoist or pump… they come from insufficient power delivery. Traditional lead-acid batteries struggle to keep up with the high amp draw required when your system is working under load.
This is where the dual battery setup changes everything.
By running two 12.8V 105Ah LiFePO4 batteries in parallel (210Ah total), you dramatically increase available current, reduce voltage drop, and allow your hydraulic power unit to perform the way it was designed to.
👉 More power under load
👉 More consistent dump cycles
👉 Less strain on your system
👉 Dump all day without power loss
Dual Battery Advantage for Dump Trailers
Most dump trailers today are commonly run using a single lead-acid battery — and for light to moderate use, that setup can get the job done.
However, as load increases and hydraulic systems operate closer to working pressure, power demand rises quickly. This is where limitations start to show:
- Slower dump cycles under heavy load
- Voltage drop during operation
- Reduced performance as the battery discharges
The dual lithium battery setup is designed to solve these real-world limitations.
By running two 105Ah LiFePO4 batteries in parallel (210Ah total), you gain:
- Higher available current for demanding lifts
- Improved voltage stability under load
- More consistent performance from first dump to last
- Increased total runtime between charges
Instead of simply “getting by” with a traditional setup, the dual battery configuration allows your hydraulic system to operate more efficiently — especially when lifting heavier loads or running multiple cycles throughout the day.
👉 This is not just a battery upgrade — it’s a performance upgrade for your dump trailer.
Real-World Dump Cycle Comparison
To better understand the real-world difference, here’s what power usage looks like during a typical dump cycle:
- Up Cycle: ~289 amps for 45–55 seconds
- Down Cycle: ~120 amps for ~45 seconds
This results in roughly 5–6 amp hours used per full dump cycle.
Dual 105Ah Lithium Setup (210Ah Total)
- Estimated 35–40 full dump cycles (theoretical)
- Real-world expectation: 25–35 heavy dump cycles per charge
- Consistent voltage under load = more reliable performance
Typical 12V 100Ah Lead-Acid Battery
- Only ~50Ah usable capacity (to avoid damage)
- Significant voltage drop under load
- Real-world expectation: 8–12 dump cycles before performance drops off
The difference isn’t just capacity — it’s usable power under load.
Lead-acid batteries lose voltage quickly as they discharge, which slows down your dump speed and can leave you stuck mid-job.
Lithium batteries maintain a more consistent voltage curve, allowing your hydraulic system to perform more reliably from the first dump to the last.
👉 Upgrading from a single lead-acid battery to a dual lithium setup is one of the most noticeable performance improvements you can make to a dump trailer.
Dual Battery Kit Specifications (Per Battery)
- Voltage: 12.8V
- Capacity: 105Ah (210Ah when paired)
- Energy: 1344Wh per battery
- Discharge Rating:
- 150A continuous (300A Continuous Output)
- 180A (2 minutes) (360A 2 Minutes)
- 380A peak (760A Peak Output)
- Bluetooth Monitoring (iOS & Android)
- Integrated Smart BMS Protection
- Weight: ~23.8 lbs each
Single Battery Option (Read Before Selecting)
A single 105Ah battery can work for light-duty or non-hydraulic applications such as:
- RVs
- Solar storage
- Marine use
However, for dump trailer applications, a single battery is NOT recommended.
Due to the high current demand of hydraulic systems, a single battery may:
- Shut down prematurely under load
- Provide inconsistent performance
- Limit your dump cycle capability
👉 For dump trailers, always choose the Dual Battery Kit.
Ideal Applications
- Dump trailers (light to heavy duty)
- Hydraulic scissor hoists (PF-310, PF-416, PF-520, etc.)
- Truck dump bed conversions
- High-demand 12V hydraulic systems
Product Videos & Setup Guidance
Want to see how battery setup impacts real dump trailer performance?
Watch installation tips and performance breakdowns here
Frequently Asked Questions
Why does my dump trailer struggle with a single battery?
Hydraulic systems require high amperage under load. A single battery often cannot supply enough current without voltage drop or triggering protection systems.
How should the two batteries be connected?
They should be wired in parallel (positive to positive, negative to negative) to maintain 12V while increasing capacity and output.
Will this make my dump trailer faster?
It improves consistency and reduces slowdowns under load by ensuring your power unit receives proper voltage and current.
Can I upgrade later from one battery to two?
Yes, but for best results we recommend starting with the dual setup to avoid performance issues.
Benefits of Choosing Primary Mover
- High-quality products built for real-world hydraulic performance
- Expert support for dump trailer and hoist applications
- One-year warranty on hydraulic-related systems
- Focused on solutions that improve real jobsite performance
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