Replacement for BTP-B4K8: Drop-In Alternatives We Stock
Looking for a replacement for the BTP-B4K8 (BTP-B4K8 - Fujitsu 4400mAh 10.8v Laptop Battery for V3405 V3505 V3525 and V8210)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the BTP-B4K8
| SKU | BTP-B4K8 |
|---|---|
| Product | BTP-B4K8 - Fujitsu 4400mAh 10.8v Laptop Battery for V3405 V3505 V3525 and V8210 |
| Current price | $76.37 |
| Stock status | In Stock |
| Detail page | View BTP-B4K8 › |
Drop-in replacements for BTP-B4K8
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.
FPCBP446 - Fujitsu 11.25V 6400mAh Laptop Battery for Fujitsu LifeBook E756 E746 T725
SKU: FPCBP446
Price: $288.11
LHP260-01 - HP Notebook Battery for HP EliteBook 2560p 11.1 Volt Li-Ion Laptop Battery (4400mAh)
SKU: LHP260-01
Price: $160.29
S26391-F1106-L100 - Fujitsu 6-Cell 6700mAh Replacement Laptop Battery
SKU: S26391-F1106-L100
Price: $308.42
PA3399U-2BRS-06 - Toshiba Battery Pack - Notebook Battery - 1 x Li-Ion ion 6-Cell 4300 mAh
SKU: PA3399U-2BRS-06
Price: $74.03
409248-001 - HP 128MB Battery Backed Write Cache (bbwc) Memory Module for Ultra-320 Smart Array 641 642 6i Controller (no Battery)
SKU: 409248-001
Price: $77.63
012304-001 - HP 128MB Battery Backed Write Cache (bbwc) Memory Module for Ultra-320 Smart Array 641 642 6i Controller (no Battery)
SKU: 012304-001
Price: $77.63
417340-001 - HP 128MB Battery Backed Cache With Battery for Smart Array 6400 P600
SKU: 417340-001
Price: $81.13
C0887 - Dell Raid Key Battery with Black Plastic Battery Holder for PowerEdge 1650, 1750, 2600, 2650
SKU: C0887
Price: $82.42
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.