Panasonic CF-VZSU1CJS Battery for Panasonic Let's note SV / FV
- Part Type:
- Battery
- Laptop Family:
- Panasonic Let's note SV / FV
Quick facts
CF-VZSU1CJS is a battery that fits 5 laptop models: Panasonic Let's note CF-SV7, Panasonic Let's note CF-SV8, Panasonic Let's note CF-SV9, Panasonic Let's note CF-SV1, Panasonic Let's note CF-SV2. It is also sold as CF-VZSU1EJS.
| Part number | CF-VZSU1CJS |
|---|---|
| Part type | Battery |
| Also sold as | CF-VZSU1EJS |
| Fitment confidence | OEM confirmed |
| Last checked | 2026-10-06 |
Compatible models (5)
- Panasonic Let's note CF-SV7
- Panasonic Let's note CF-SV8
- Panasonic Let's note CF-SV9
- Panasonic Let's note CF-SV1
- Panasonic Let's note CF-SV2
Laptops compatible with CF-VZSU1CJS
Fits 5 laptops: 5 OEM confirmed, 0 seller listed, 0 reported by users.
Also sold as: CF-VZSU1EJS
- Panasonic Let's note CF-SV1OEM confirmedMatched on: part number CF-VZSU1CJS
- Panasonic Let's note CF-SV2OEM confirmedMatched on: part number CF-VZSU1CJS
- Panasonic Let's note CF-SV7OEM confirmedMatched on: part number CF-VZSU1CJS
- Panasonic Let's note CF-SV8OEM confirmedMatched on: part number CF-VZSU1CJS
- Panasonic Let's note CF-SV9OEM confirmedMatched on: part number CF-VZSU1CJS
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Panasonic Last updated: 2026-10-06
Where to buy
- Panasonic Store (Yahoo! Shopping)Go to store
Panasonic CF-VZSU1CJS Battery for Panasonic Let's note SV / FV Review
Panasonic CF-VZSU1CJS battery pack (S) for the Let's note CF-SV7, SV8, SV9, SV1 and SV2.
CF-VZSU1CJS is Panasonic's standard S pack for the Let's note SV line: 4 cell, 7.2V, 5900mAh, about 42.5Wh by our calculation. Panasonic lists it for the CF-SV7, SV8, SV9, SV1 and SV2, and the SV spec pages show the same 7.2V 5900mAh battery. Buy CF-VZSU1EJS instead if your laptop has a black body. If you want more runtime, the L pack CF-VZSU1DJS fits the same models. It does not fit the CF-FV line.
Fitment answer
OEM confirmed for the Let's note CF-SV7, SV8, SV9, SV1 and SV2. CF-VZSU1CJS is Panasonic's standard S pack: 4 cell, 7.2V, 5900mAh.
Panasonic quotes volts and mAh, not Wh. The 42.5Wh figure is our calculation from Panasonic's rating.
Which laptops this fits
Panasonic's option list names CF-SV7, CF-SV8, CF-SV9, CF-SV1 and CF-SV2. The spec pages for SV7HDWQR, SV8FDSQR, SV9HDSQR and SV2JDCCR all show the same 7.2V 5900mAh standard battery. Our source notes also list the pack for the CF-LV series.
It does not fit the CF-FV1, FV3 or FV4, which use the 3 cell CF-VZSU1PJS and CF-VZSU1QJS packs.
What to check before you buy
Body colour decides the part number. CF-VZSU1CJS is for silver and black-and-silver bodies. CF-VZSU1EJS is the black body version with the same rating.
The optional L pack, CF-VZSU1DJS, runs at 10.8V instead of 7.2V. Panasonic lists both for the same laptops, so the machine handles either. Do not stretch that to third party packs with odd voltages.
The pack weighs about 0.255kg.
Part numbers this replaces
CF-VZSU1EJS, the black body version. If your old pack reads CF-VZSU1CJS or CF-VZSU1EJS, this is the matching rating.
Safety and handling
If the pack looks swollen, bulges the case or lifts the keyboard or touchpad, stop using the laptop and stop charging it. Do not puncture, bend or press on it.
New lithium packs ship at partial charge because transport rules cap how charged a battery can be in transit. A pack that arrives low is normal, not faulty.
Recycle the old pack at an electronics or battery drop-off point. Never mail a used or swollen battery back to a seller.
Age and condition
Panasonic sells this pack new through its own store; our source data dates the silver version to February 2018. We found no published date code policy.
The pack has been on sale for years, so stock may be old. Ask any seller for the manufacture date before you pay.
If this is not yours
Read the part number printed on the battery you are replacing and the model code on your laptop's label. If neither appears on this page, this is not your part.
Own a CF-FV? Look at CF-VZSU1PJS or CF-VZSU1QJS. Want the bigger SV pack? Look at CF-VZSU1DJS. For everything else, browse our full laptop parts catalog at /laptop-parts.
Sources
https://panasonic.jp/cns/pc/support/products/old_option.html https://panasonic.jp/pc/products/CF-SV8FDSQR/spec.html https://panasonic.jp/pc/products/CF-SV9HDSQR/spec.html https://panasonic.jp/pc/products/CF-SV7HDWQR/spec.html https://ec-plus.panasonic.jp/biz/ap/storeaet/a2A/Product?SEARCH_TYPE=1&FREEWORD=CF-VZSU https://panasonic.jp/pc/products/CF-SV2JDCCR/spec.html https://ec-plus.panasonic.jp/biz/pc/campaign/sale_sp_2206/pdf/qv_spec_clamshell.pdf
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Let's note CF-SV7, SV8, SV9, SV1 and SV2 owners with silver or black-and-silver bodies
- Owners who want the lighter standard pack
Not for
- Let's note CF-FV owners
- Black body SV owners (buy CF-VZSU1EJS)
- Owners who want maximum runtime (look at CF-VZSU1DJS)
Specifications
| Part Type | Battery |
|---|---|
| Brand | Panasonic |
| Part Number | CF-VZSU1CJS |
| Alternate Part Numbers | CF-VZSU1EJS |
| Compatible Models | Panasonic Let's note CF-SV7, Panasonic Let's note CF-SV8, Panasonic Let's note CF-SV9, Panasonic Let's note CF-SV1, Panasonic Let's note CF-SV2 |
| Fitment Confidence | OEM confirmed |
| Description | Battery pack (S), 4-cell Li-ion |
| Voltage | 7.2V |
| Rated Capacity | 5900mAh |
| Energy Wh Computed | about 42.5Wh (V x Ah) |
| Cells | 4 |
| Mass | about 0.255kg |
| Released | 2018-02 (silver) |
| Market | Japan |
FAQs
Can I fit a higher capacity pack in my Let's note SV?
Yes. Panasonic lists the L pack CF-VZSU1DJS (6 cell, 10.8V, 6300mAh, about 68Wh by our calculation) for the same SV7 to SV2 models. It weighs about 0.355kg against 0.255kg for this S pack.
Can I swap the battery myself?
Yes. Panasonic's support FAQ 0497 covers battery replacement on the SV7, SV8, SV9, SV1, SV2 and LV.
Why does my Let's note say the battery is not genuine?
We have not found Panasonic documentation on how Let's note firmware treats a non Panasonic pack. CF-VZSU1CJS is the genuine part, so buying it avoids the question.
Why did my new battery arrive at 30 percent?
Lithium packs have to ship partly charged under transport rules, so a low reading on arrival is expected. Fit it, charge it to full on the laptop's own adapter, and judge runtime only after a full cycle.