Replacement for 42T4765: Drop-In Alternatives We Stock
Looking for a replacement for the 42T4765 (42T4765 - Lenovo 25 (4 CELL) Battery for ThinkPad E420 E425 E520 E525 S)? Pro Disk Network ships IBM 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 42T4765
| SKU | 42T4765 |
|---|---|
| Product | 42T4765 - Lenovo 25 (4 CELL) Battery for ThinkPad E420 E425 E520 E525 S |
| Current price | $204.62 |
| Stock status | In Stock |
| Detail page | View 42T4765 › |
Drop-in replacements for 42T4765
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.
45N1121 - IBM Lenovo 11.1V 4.25Ah 48Wh 3 Cell Li-ion Primary Battery for ThinkPad T431s
SKU: 45N1121
Price: $149.96
42T4735 - IBM Lenovo 6-Cell Li-Ion Battery 25+ for ThinkPad SL410 SL510 Series
SKU: 42T4735
Price: $189.49
51J0500 - IBM Lenovo 9-Cell Li-Ion Battery 25++ for ThinkPad SL410 SL510 Series
SKU: 51J0500
Price: $199.49
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.