The Reserve Cell | 640Wh LiFePO4 Expansion Battery for VTOMAN Jump 600X

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EastSupplier PlatformSKU: 1005008398197355-JUMP600X EB-United States

Color: JUMP600X EB
Price:
$714.45 $893.06

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Description

Power Is Not About Wattage. It Is About Duration. A power station that runs out at hour three of a two-day outage is not a solution — it is a reminder of what was not planned for. The VTOMAN Reserve Cell is a 640Wh LiFePO4 expansion battery purpose-built for the Jump 600X ecosystem, doubling your runtime without doubling your footprint. This is not an accessory. It is the difference between getting through the night and being forced to ration.

Engineered around Lithium Iron Phosphate (LiFePO4) chemistry, the Reserve Cell delivers over 3,000 full charge cycles before reaching 80% capacity — a lifespan that outlasts most NMC-based competitors by a factor of four. Its integrated BMS (Battery Management System) monitors temperature, overcharge, over-discharge, and short-circuit protection across every cell, ensuring safe operation whether it is powering a campsite refrigerator in summer or a CPAP machine through a winter blackout. The plug-and-play interface with the Jump 600X means no adapters, no configuration, no thinking — just connect and extend.

For the off-grid professional, the remote worker, or the prepared household, energy independence is not a lifestyle fantasy. It is a calculation of watt-hours versus demand. The Reserve Cell shifts that equation decisively in your favor.


Technical Specifications

  • Capacity: 640Wh (Expandable for VTOMAN Jump 600X)
  • Battery Chemistry: LiFePO4 (Lithium Iron Phosphate)
  • Cycle Life: 3,000+ Cycles to 80% Capacity
  • BMS Protection: Overcharge, Over-Discharge, Short-Circuit, Temperature Monitoring
  • Compatibility: VTOMAN Jump 600X Power Station (Plug-and-Play)
  • Use Cases: Camping, RV, Home Backup, CPAP, Remote Work, Emergency Preparedness

Frequently Asked Questions

Q: Can this battery be used standalone?
No. The Reserve Cell is designed exclusively as an expansion unit for the VTOMAN Jump 600X power station and requires the host unit to function.

Q: How many expansion batteries can I chain?
The Jump 600X supports one expansion battery, effectively doubling your total capacity to 1,280Wh.

Q: What is the real-world runtime gain?
With the expansion battery, a 60W CPAP machine runs approximately 18-20 hours (vs. 9-10 hours on the base unit alone), and a 50W campsite refrigerator extends from 10 to 20+ hours.

Q: Does LiFePO4 require special maintenance?
No. Unlike lead-acid batteries, LiFePO4 requires no watering, no equalization charging, and no venting. Store at any charge level without degradation.

Capacity is not a spec. It is the number of hours between you and the dark.

Customer Reviews

Customer Reviews

Based on 3 reviews
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Alex Rivera
Solid expansion, wish it had its own outputs

The capacity extension is real — I measured 638Wh out of the rated 640 on a discharge test. Charges laptops and Starlink for a full remote workday off-grid. My one wish: give it a USB-C port so it has some standalone utility when not paired with the Jump 600X. Still, for what it's designed for, it's excellent.

L
Linda Hartwell
Peace of mind for hurricane season

Living in Florida, power outages are a seasonal reality. The expansion battery pushed our CPAP runtime from one night to two full nights. During Hurricane season last year, we ran essential devices for 48 hours straight on the combined setup. Worth every penny for the extra capacity alone.

T
Tom Bergstrom
Doubled our campsite runtime effortlessly

Paired this with the Jump 600X for a 5-day overland trip through Utah. Ran a Dometic fridge, charged two phones and a drone battery every night, and still had power on day 5. The LiFePO4 chemistry gives me confidence it'll survive years of off-grid abuse. Plug-and-play means no brain damage — one cable, done.

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