The short version: Same battery, different jobs. Buy the HomePower 3600 Plus if you are powering an RV: it has the NEMA TT-30 outlet a 30-amp trailer plugs into. Buy the HomePower 3600 Pro Max if you are backing up a house: it delivers 4,000W at 240V from one unit and carries UL 9540 certification with an emergency stop.
What is identical
Both are 3,584Wh. Both use EV-grade LiFePO4 cells rated for 6,000 cycles, which Jackery puts at 16 or more years of service. Both run under 30 dB. Both expand to 21.5kWh with five Battery Pack 3600 units, and both reach 43kWh with two stations in parallel and ten packs. The same expansion battery fits either one.
So this is not a capacity decision or a battery-quality decision. It is about the sockets and the certification.
HomePower 3600 Plus: the RV answer
The 3600 Plus puts out 3,600W continuous with 7,200W surge at 120V, and it has a NEMA TT-30 outlet on the chassis. That single detail is why it is the one we point RV owners at: a 30-amp travel trailer plugs in with the shore cord it already has.
For 240V you connect two units. That is fine for a well pump or a dryer if you were going to buy two anyway, but it doubles the spend.
HomePower 3600 Pro Max: the house answer
The Pro Max delivers 4,000W at 240V or 2,000W at 120V from a single unit, and can run 240V and 120V loads at the same time. Paired with a manual transfer switch, Jackery positions it as automatic whole-home backup at a fraction of the cost of a traditional automatic transfer switch install, with a sub-10ms handover so nothing restarts.
It also has the safety paperwork: UL 9540 certification, 5VA-grade fireproofing, and a dedicated EPO emergency stop. That matters if the unit is living inside a house rather than in a truck bed. It lists eight ways to recharge, including from a gas generator, which is a genuinely useful backstop in a long outage.
One accessory note: the 40A Charging Cable is specific to the Pro Max. It does not fit other models.
Side by side
- Capacity: 3,584Wh both.
- 120V output: 3,600W on the Plus, 2,000W on the Pro Max.
- 240V output: two units required on the Plus, 4,000W from one unit on the Pro Max.
- RV TT-30 outlet: Plus only.
- Certification: UL 9540, fireproofing and EPO called out on the Pro Max.
- Expansion: identical, up to 21.5kWh single or 43kWh paralleled.
- Cells: EV-grade LiFePO4, 6,000 cycles, both.
How to choose in one line
If your shore cord ends in a TT-30 plug, buy the Plus. If your problem is that the house goes dark and the well pump is 240V, buy the Pro Max. If you want both, the Plus plus a manual transfer switch covers the camper and the essential circuits without moving up.
FAQ
Does the higher 120V rating on the Plus matter?
It does if you start motors on 120V, like a rooftop air conditioner or a compressor. 3,600W with a 7,200W surge has more headroom than 2,000W. The Pro Max puts its capability into 240V instead.
Can I use the same expansion batteries if I switch models later?
Yes. The Battery Pack 3600 is listed for both the 3600 Plus and the 3600 Pro Max, so the packs carry over.
Is the Pro Max worth it just for the certification?
If it is going in a garage or a utility room and you care about UL 9540 and an emergency stop, yes. If it is going in a trailer, the certification is not doing much for you and the TT-30 outlet is.
Which one for a 50-amp coach?
Neither, really. Look at the Explorer 5000 Plus, which has a NEMA 14-50 outlet and 7,200W continuous.
Every Jackery unit we list ships direct from Jackery's US warehouse with the manufacturer's warranty, and we price the range at or under the lowest price we can find online. Questions about a specific setup? Talk to a parts person before you order.