Alternative to E7U21AA: Better-Value Equivalents in Stock
Comparing the E7U21AA (E7U21AA - HP Ca06xl Primary Battery 640/650) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the E7U21AA
| SKU | E7U21AA |
|---|---|
| Product | E7U21AA - HP Ca06xl Primary Battery 640/650 |
| Current price | $328.92 |
| Stock status | In Stock |
| Detail page | View E7U21AA › |
Alternatives to E7U21AA
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
718756-001 - HP 6-Cell 2800 mAh 55Wh 10.8 V DC Li-Ion Battery for ProBook 640 G1 / 645 G1 / 650 G1 / 655 G1
SKU: 718756-001
Price: $211.00
738683-001 - HP DC-in Power Connector Cable for ProBook 640 / 645 / 650
SKU: 738683-001
Price: $126.22
484788-001 - HP Notebook Battery Li-ion 8-Cell Primary Battery for 8530p/8530w/8730w Series Ku533aa
SKU: 484788-001
Price: $184.21
HSTNN-OB60 - HP Notebook Battery Li-ion 8-Cell Primary Battery for 8530p/8530w/8730w Series Ku533aa
SKU: HSTNN-OB60
Price: $194.43
408545-142 - HP 6-Cell Lithium-Ion 10.8VDC 4400MAh 55Wh Primary Notebook Battery for NC6000/NC6500 Series Notebooks
SKU: 408545-142
Price: $90.47
463310-724 - HP 6-Cell Lith Battery (Primary) for EliteBook 8440p Notebook PC
SKU: 463310-724
Price: $95.47
BJ803AA - HP 9-Cell 11.1v Lithium-ion (Li-Ion) Primary Notebook Battery for EliteBook 2510P / 2530P / 2540p
SKU: BJ803AA
Price: $100.95
482262-001 - HP 3-Cell Lithium-Ion 10.8-Volt 2800mAh Primary Notebook Battery for HP 2140 Notebook
SKU: 482262-001
Price: $125.47
458274-422 - HP 8-Cell 2.55Ah 73Wh Li-Ion Primary Notebook Battery for HP EliteBook 8530p Laptop
SKU: 458274-422
Price: $125.97
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.