What is the capacity of the Ampace JP40?

The Ampace JP40 has a capacity of 4000mAh.

What is the discharge rate of the Ampace JP40?

The Ampace JP40 supports 45.00A continuous discharge.

What form factor is the Ampace JP40?

The Ampace JP40 is a 21700 form factor cell.

Ampace JP40

Name: Ampace JP40
Brand: Ampace
Availability: InStock

Ampace Battery Cell

In brief: 21700 battery cell. 4000mAh capacity. 45A continuous discharge. From $4 across 2 sellers.

Specs verified Jul 15, 2026

Where to Find

Prices tracked across 3 sellers

18650 Battery Store

$3.50

Checked 3d ago

IMR Batteries

$5.99

18650 Battery

Out of stock

Checked 1d ago

Price History

Price changes tracked by the crawler

+ Shipping- Coupons

Current best price $3.50. Over the past 90 days: low $3.25, high $5.99, average $5.09 — down 31% vs average.

18650 Battery
18650 Battery Store
IMR Batteries

All Records

75 price records in this period

Date	Price	Shipping	Total	Change	Coupon	Rating	Sales	In Stock	Status
18650 Battery(30 records)
Jul 15, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	No	active
Jul 9, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jul 7, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jul 5, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jul 1, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 29, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 27, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 23, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 21, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 19, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 15, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 13, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 12, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 9, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 7, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 5, 202609:55 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 3, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 2, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 31, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 29, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 27, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 25, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 23, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 21, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 19, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 18, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 16, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 14, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 12, 202609:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Apr 21, 202609:00 AM	$5.99	—	$5.99	Initial	—	—	—	Yes	active
18650 Battery Store(29 records)
Jul 13, 202602:38 PM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 11, 202612:07 PM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 9, 202609:01 AM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 7, 202609:01 AM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 5, 202609:01 AM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 3, 202609:01 AM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jul 1, 202609:01 AM	$3.50	—	$3.50	$0.00	—	—	—	Yes	active
Jun 29, 202609:01 AM	$3.50	—	$3.50	$0.25	—	—	—	Yes	active
Jun 27, 202609:01 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 23, 202609:01 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 21, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 18, 202609:25 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 13, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 9, 202603:42 PM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 7, 202603:39 PM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 3, 202610:50 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Jun 2, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 31, 202610:37 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 29, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 27, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 25, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 23, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 21, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 19, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 18, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 16, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 14, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
May 12, 202609:00 AM	$3.25	—	$3.25	$0.00	—	—	—	Yes	active
Apr 21, 202609:00 AM	$3.25	—	$3.25	Initial	—	—	—	Yes	active
IMR Batteries(16 records)
Jul 9, 202606:30 PM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 30, 202610:10 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 21, 202612:05 PM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 12, 202611:07 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Jun 2, 202610:07 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 29, 202610:02 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 27, 202610:00 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 25, 202601:35 PM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 23, 202610:02 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 21, 202609:03 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 19, 202609:04 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 18, 202609:04 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 16, 202609:03 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 14, 202609:03 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
May 12, 202609:03 AM	$5.99	—	$5.99	$0.00	—	—	—	Yes	active
Apr 21, 202609:05 AM	$5.99	—	$5.99	Initial	—	—	—	Yes	active