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Nissan Roox Smart Key & Remote Battery by Chassis Code
Which battery is used in the documented key system? Compare actual published manufacturer references for 4 exact Nissan Roox chassis codes. Values can differ across drivetrain, trim and production period.
4documented chassis
1answer shared by every code
1source documents
2026-10-23latest evidence review
Before applying a specification
View all Nissan Roox chassis →Confirm the engineering configuration
Different key or remote variants may ship with different coin cells even within the same model family. Match the actual fob, not just the vehicle name.
Year ranges here describe the cited chassis coverage, not every option sold under the same model name worldwide. The actual service manual and fitted equipment take precedence.
Source-linked answers
Smart Key & Remote Battery: chassis comparison
Open the original exact-code answer to see the manufacturer reference and full caveat.
| Exact code | Documented years | Key battery reference | Manufacturer source |
|---|---|---|---|
| B44A | 2020–2023 | CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition) ↗ | Nissan Motor Co., Ltd. ↗Checked 2026-10-23 |
| B45A | 2020–2023 | CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition) ↗ | Nissan Motor Co., Ltd. ↗Checked 2026-10-23 |
| B47A | 2020–2023 | CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition) ↗ | Nissan Motor Co., Ltd. ↗Checked 2026-10-23 |
| B48A | 2020–2023 | CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition) ↗ | Nissan Motor Co., Ltd. ↗Checked 2026-10-23 |
Documented differences
Which codes share an answer?
Grouped by exact published text. Similar wording is not treated as proof of identical equipment.
Reviewable evidence
Source scope and important caveats
Nissan Roox B44A — Smart-key battery ↗
Published answer: CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition)
Key battery type from Nissan's owner's manual key battery replacement pages; both key types use CR2032.
Applicability: Applies only to cars covered by Nissan's ROOX BA1 owner's manual, March 2020 online edition (production 2020-03 to 2021-02; Nissan's next online edition is dated 2021-03); other production years are not established by this source. Japan-market Nissan Roox B44A (5AA-B44A; BR06 0.66 L petrol with SM21 mild hybrid, front-wheel drive), per Nissan's Roox specification sheet; the manual's engine row is BR06DE. Which key is supplied depends on grade; both use CR2032. Source SHA-256 59c15ea9b6a386105121ebc06e68d74e55c66c047ed2f60423653b5281c9cc64.
Nissan Motor Co., Ltd. manufacturer reference · Nissan Motor Co., Ltd. · Manufacturer reference ↗
Nissan Roox B45A — Smart-key battery ↗
Published answer: CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition)
Key battery type from Nissan's owner's manual key battery replacement pages; both key types use CR2032.
Applicability: Applies only to cars covered by Nissan's ROOX BA1 owner's manual, March 2020 online edition (production 2020-03 to 2021-02; Nissan's next online edition is dated 2021-03); other production years are not established by this source. Japan-market Nissan Roox B45A (4AA-B45A; BR06 0.66 L intercooled turbo petrol with SM21 mild hybrid, front-wheel drive), per Nissan's Roox specification sheet; the manual's engine row is BR06DET. Which key is supplied depends on grade; both use CR2032. Source SHA-256 59c15ea9b6a386105121ebc06e68d74e55c66c047ed2f60423653b5281c9cc64.
Nissan Motor Co., Ltd. manufacturer reference · Nissan Motor Co., Ltd. · Manufacturer reference ↗
Nissan Roox B47A — Smart-key battery ↗
Published answer: CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition)
Key battery type from Nissan's owner's manual key battery replacement pages; both key types use CR2032.
Applicability: Applies only to cars covered by Nissan's ROOX BA1 owner's manual, March 2020 online edition (production 2020-03 to 2021-02; Nissan's next online edition is dated 2021-03); other production years are not established by this source. Japan-market Nissan Roox B47A (5AA-B47A; BR06 0.66 L petrol with SM21 mild hybrid, four-wheel drive), per Nissan's Roox specification sheet; the manual's engine row is BR06DE. Which key is supplied depends on grade; both use CR2032. Source SHA-256 59c15ea9b6a386105121ebc06e68d74e55c66c047ed2f60423653b5281c9cc64.
Nissan Motor Co., Ltd. manufacturer reference · Nissan Motor Co., Ltd. · Manufacturer reference ↗
Nissan Roox B48A — Smart-key battery ↗
Published answer: CR2032 (Intelligent Key and remote-control entry key) (Nissan March 2020 BA1 manual edition)
Key battery type from Nissan's owner's manual key battery replacement pages; both key types use CR2032.
Applicability: Applies only to cars covered by Nissan's ROOX BA1 owner's manual, March 2020 online edition (production 2020-03 to 2021-02; Nissan's next online edition is dated 2021-03); other production years are not established by this source. Japan-market Nissan Roox B48A (4AA-B48A; BR06 0.66 L intercooled turbo petrol with SM21 mild hybrid, four-wheel drive), per Nissan's Roox specification sheet; the manual's engine row is BR06DET. Which key is supplied depends on grade; both use CR2032. Source SHA-256 59c15ea9b6a386105121ebc06e68d74e55c66c047ed2f60423653b5281c9cc64.
Nissan Motor Co., Ltd. manufacturer reference · Nissan Motor Co., Ltd. · Manufacturer reference ↗