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COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
Expansion battery for a portable power station
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations
Expansion battery for a portable power station

COMVOLT 12V Expansion Battery, 4096Wh or 6016Wh LiFePO4, for COMVOLT Stations

$2,398.00
$2,398.00 - $2,798.00
$2,398.00
$1,799.00
$1,799.00 - $2,099.00
$1,799.00
Authorized dealer, sourced direct

Reserve Power Co. is an authorized dealer for every brand we carry.  For more information on our brand partners click here.

Price match guarantee

If you find a better price elsewhere, we will match it.  Find out more here.

Free shipping in 1-3 business days

Every order receives free standard shipping.  Click here for more shipping and here for more returns information.

Manufacturer-backed warranty

All products sold by Reserve Power Co. include full manufacturer warranties, serviced directly by the brand.  For more information on Reserve Power Co.'s warranty policy,click here.

30-day returns

Return or exchange within 30 days of delivery. Items must be unused, uninstalled, and in original packaging.

Defective, damaged, or wrong item: we cover return shipping, with no restocking fee.

Change of mind: return shipping and any restocking fee depend on the brand.

Start a return by emailing support@reservepowerco.com with your order number. We reply within 1 business day.

See full return policy

Comvolt Expansion Batteries add 12V LiFePO4 capacity to a Comvolt 2200, 4200 or 6000 Pro. Each pack connects in parallel through the station's rear Anderson port, and an RJ45 (Ethernet) link lets the station track the pack's charge and health on its own screen and in the Comvolt app. Like the stations, the packs heat themselves so they can charge in cold weather.

Real-world numbers: the 320Ah pack is rated 4096Wh, about 3,482Wh usable (rated Wh × 0.85). The 470Ah pack is rated 6016Wh, about 5,114Wh usable. Paired with a Comvolt 4200, the 320Ah pack takes you to about 7,050Wh usable, enough to run a 500W 12V air conditioner for roughly 14 hours. Remember that solar input stays at the station's limit (400W on the 2200 and 4200, 800W on the 6000 Pro), so more battery means longer to refill from the sun.

Options:

  • 12V 320Ah, 4096Wh, aluminum shell
  • 12V 470Ah, 6016Wh

Best for: Adding run time to a Comvolt station • 12V air conditioning through the night • Multi-day boondocking • Full-time van and RV builds

WHY RPC? Reserve Power Co. is an authorized Comvolt dealer, and this genuine Comvolt product ships directly from Comvolt, see our sourcing documentation here. Free U.S. shipping. Price match guaranteed. Backed by Comvolt's 5-year manufacturer warranty on battery products, and serviced directly by them.

Product Authenticity This is a genuine Comvolt product, supplied to Reserve Power Co. directly by Comvolt Energy under our authorized dealer relationship. Shipped new from Comvolt's U.S. warehouse in original manufacturer packaging with full manufacturer documentation. Verify our sourcing here.

Specifications

  • Chemistry: LiFePO4, 12.8V nominal
  • Capacity: 320Ah (4096Wh) or 470Ah (6016Wh)
  • Cycle life: Comvolt rates 4,000 cycles
  • Connection: parallel via the station's rear Anderson port, plus RJ45 for battery monitoring
  • Low-temperature self-heating: Yes
  • Compatible with: Comvolt 2200, 4200 and 6000 Pro
  • Warranty: 5 years (battery products), original purchaser, proof of purchase required

Specifications shown are the manufacturer's published figures. Comvolt has not published a full spec sheet for the expansion batteries; contact us for dimensions and weight before you plan your install. Product photography is supplied by the manufacturer and used with permission as an authorized dealer. Run-time estimates are Reserve Power Co.'s own.

What Comvolt owners say

Reviews posted on comvoltenergy.com by owners of this model.

“This is the idea battery for an RV or Van electrical system builds... Like this unit so much, I ordered a 2nd one.”
Matthew C.Expansion Battery owner Review originally posted on comvoltenergy.com

These reviews were posted on the manufacturer's website and are shared with permission. They are not reviews of purchases from Reserve Power Co.

Free Shipping

All The Time. Period.

Returns and Exchanges

Return or Exchange within 30 days for eligible orders

Price Match Guarantee

If you find a better price elsewhere, we will meet that price.

Authorized Dealer

For Every Brand We Carry

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Description

Comvolt Expansion Batteries add 12V LiFePO4 capacity to a Comvolt 2200, 4200 or 6000 Pro. Each pack connects in parallel through the station's rear Anderson port, and an RJ45 (Ethernet) link lets the station track the pack's charge and health on its own screen and in the Comvolt app. Like the stations, the packs heat themselves so they can charge in cold weather.

Real-world numbers: the 320Ah pack is rated 4096Wh, about 3,482Wh usable (rated Wh × 0.85). The 470Ah pack is rated 6016Wh, about 5,114Wh usable. Paired with a Comvolt 4200, the 320Ah pack takes you to about 7,050Wh usable, enough to run a 500W 12V air conditioner for roughly 14 hours. Remember that solar input stays at the station's limit (400W on the 2200 and 4200, 800W on the 6000 Pro), so more battery means longer to refill from the sun.

Options:

  • 12V 320Ah, 4096Wh, aluminum shell
  • 12V 470Ah, 6016Wh

Best for: Adding run time to a Comvolt station • 12V air conditioning through the night • Multi-day boondocking • Full-time van and RV builds

WHY RPC? Reserve Power Co. is an authorized Comvolt dealer, and this genuine Comvolt product ships directly from Comvolt, see our sourcing documentation here. Free U.S. shipping. Price match guaranteed. Backed by Comvolt's 5-year manufacturer warranty on battery products, and serviced directly by them.

Product Authenticity This is a genuine Comvolt product, supplied to Reserve Power Co. directly by Comvolt Energy under our authorized dealer relationship. Shipped new from Comvolt's U.S. warehouse in original manufacturer packaging with full manufacturer documentation. Verify our sourcing here.

Specifications
  • Chemistry: LiFePO4, 12.8V nominal
  • Capacity: 320Ah (4096Wh) or 470Ah (6016Wh)
  • Cycle life: Comvolt rates 4,000 cycles
  • Connection: parallel via the station's rear Anderson port, plus RJ45 for battery monitoring
  • Low-temperature self-heating: Yes
  • Compatible with: Comvolt 2200, 4200 and 6000 Pro
  • Warranty: 5 years (battery products), original purchaser, proof of purchase required

Specifications shown are the manufacturer's published figures. Comvolt has not published a full spec sheet for the expansion batteries; contact us for dimensions and weight before you plan your install. Product photography is supplied by the manufacturer and used with permission as an authorized dealer. Run-time estimates are Reserve Power Co.'s own.

Shipping & Returns

Shipping

Processing & Transit Times

All orders are processed within 1–3 business days after payment confirmation. Orders placed after 3:00 PM Pacific Time may begin processing the following business day. You will receive a tracking number by email once your order ships.

Estimated delivery is 2–7 business days after shipment, depending on your location and the fulfillment center your order ships from. Larger items may ship via freight and can take up to 10 business days.

Pre-Order Items

Items marked "Pre-order" are not yet in stock. The estimated ship date appears on the product page, in your cart, and in your order confirmation.

Payment: A deposit, shown on the product page, is charged at checkout. The remaining balance is charged to your saved payment method before your order ships. We'll email you before the balance is charged.

Shipping: Pre-order items ship once stock arrives, on or around the estimated date. Standard transit times (2–7 business days) apply after shipment, and shipping is free as with all orders.

Orders with in-stock items: In-stock items ship within the standard shipping window stated above. Pre-order items ship separately when available, at no extra cost.

Delays: If the estimated ship date changes, we'll email you the new date. You can cancel for a full refund, including your deposit, at any time before your order ships.

Declined balance payments: If the balance can't be charged, we'll contact you to update your payment method. If payment isn't received within 5 business days, the order may be canceled and your deposit refunded.

Order Tracking

Click here for easy order tracking and real-time delivery information.

Shipping Rates

Free standard shipping on all orders to the contiguous United States. We do not currently ship to Alaska, Hawaii, Puerto Rico, or U.S. territories.

Carriers

We ship via UPS, FedEx, and DHL, depending on product size and your location. You will receive carrier and tracking information by email once your order ships.

Freight & Oversized Items

Some products — particularly large power stations and solar kits — may ship via freight carrier. If your order ships freight, you may be contacted to schedule delivery. Please inspect your shipment at the time of delivery and note any visible damage on the carrier's delivery receipt before signing.

Damaged or Lost Shipments

Report damaged or missing shipments to us within 48 hours of delivery (or expected delivery date). Include photos of the product and packaging. Contact us at support@reservepowerco.com or (424) 250-6208.

Contact

Email: support@reservepowerco.com

Phone: (424) 250-6208

Hours: Monday-Friday, 9am-5pm Pacific Time