Answer-first. Ship EVSE on the CN→SE lane only after BMS-verified SOC ≤30%, per UN Model Regulations on the Transport of Dangerous Goods (ST/SG/AC.10/1) §38.3.3 and the UN Manual of Tests and Criteria ST/SG/AC.10/11/Rev.7 §38.3 battery test summary. Target cycle time ~4 h per unit. All labor, discharge-energy, and tooling rates are quoted per RFQ (no list pricing). Evidence date: 2026-09-21. Limitation: this SOP is parameterised to the Sungrow AC007E-01 AC EV charger paired with the Huawei LUNA2000-7/14/21-S1 LFP battery subsystem; other EVSE families require a model-specific deviation note before sign-off.
Field
Value
Decision
Proceed to container loading only after SOC ≤30% is recorded on the signed checklist (TVT-EVSE-SOC-CNSE-V3.1).
Equipment
Sungrow AC007E-01 (7 kW AC EV charger) with optional Huawei LUNA2000-7/14/21-S1 LFP buffer battery subsystem.
OEM service manual
Sungrow AC007E-01 Service Manual, Rev. 2.1 (2025-08); controlled-discharge procedure §6.3.
Corridor / lane
CN consolidation point → SE destination.
Horizon / cycle time
Indicative 4 h per unit from work-order receipt to release for loading.
Evidence date
2026-09-21 (all cited public documents accessed on this date unless stated otherwise).
Limitation
Rates, final HS codes, and duty/VAT outcomes are PENDING — lookup; model assumption values are flagged where used.
1. Purpose and Scope
This Standard Operating Procedure governs the pre-shipment verification of the State-of-Charge (SOC) of batteries integrated in EVSE (Electric Vehicle Supply Equipment) units being prepared for export on the CN→SE corridor. The procedure applies to every EVSE leaving the CN consolidation point for SE destinations and ensures that battery SOC is verified at ≤30% prior to container loading. This revision (V3.1) is parameterised to the Sungrow AC007E-01 AC EV charger with the optional Huawei LUNA2000-7/14/21-S1 LFP buffer battery subsystem; EVSE families outside this pairing require a model-specific deviation note before sign-off.
[Claim: Lithium batteries must be offered for transport at not more than 30% State-of-Charge unless the cell/battery type is exempted under the relevant special provisions; UN Model Regulations (ST/SG/AC.10/1) §38.3.3 governs the test summary. | Src: UN Model Regulations on the Transport of Dangerous Goods, ST/SG/AC.10/1 §38.3.3 | URL: https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria | accessed 2026-09-21]
[Claim: Cells and batteries must pass the T.1–T.8 tests in the UN Manual of Tests and Criteria ST/SG/AC.10/11/Rev.7 §38.3 and a test summary must be provided in transport documents. | Src: UN Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.7, §38.3 | URL: https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria | accessed 2026-09-21]
Lithium battery safety standard (portable / stationary EVSE buffer context)
IEC 62133-2:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes — Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications — Part 2: Lithium systems
Model assumption: when the shipped unit is the Sungrow AC007E-01 with no LFP buffer fitted, Steps 2–5 reduce to a "no-battery present" sign-off; the checklist row "Final SOC (%)" is recorded as "N/A — no integrated battery" and signed by the QA Coordinator. Any other EVSE model triggers a deviation note and is outside the scope of V3.1.
3. Documentary Checklist
The following documents are referenced by filename. Each filename is literal and must appear in the shipment folder before sign-off.
Re-verify SOC (%) after discharge and record final value
Service Technician
Discharge log
Final SOC entry on checklist
Final SOC ≤ 30% (%)
6
Apply handling and safety markings; visually inspect packaging
Warehouse Operator
TVT-EVSE-SOC-CNSE-V3.1.pdf
Marking confirmation
Markings present, no visible damage
7
Cross-check checklist, BMS readouts, and unit serials; sign off
QA Coordinator
TVT-EVSE-SOC-CNSE-V3.1.pdf
Signed checklist
All entries complete, consistent, signed
8
Archive signed checklist with the shipment folder; release for loading
QA Coordinator
Signed checklist
Archived shipment folder
Folder archived, shipment released
5. Timeline (Indicative)
Activity
Start (T0 reference)
Duration
Dependencies
Receive work order
T0
0.5 h
Manifest, booking confirmed
BMS readout (initial)
T0 + 0.5 h
0.5 h
Unit powered, tool available
Discharge (if required)
T0 + 1 h
1–3 h (indicative)
SOC > 30% on initial readout
BMS readout (post-discharge)
After discharge
0.5 h
Discharge complete
Marking and packing inspection
After sign-off
0.5 h
SOC ≤30% confirmed
QA sign-off and archive
After inspection
0.5 h
All entries complete
Release for loading
After archive
—
QA sign-off filed
Total indicative cycle time: 4 h per unit. Durations stated as hours (h). Durations labeled "indicative" because actual time depends on initial SOC and unit model.
6. Cost Slots (Indicative)
Cost item
Unit
Rate
Notes
Labor — Technician
per hour (h)
indicative
Quoted per RFQ
Labor — QA Coordinator
per hour (h)
indicative
Quoted per RFQ
Discharge energy consumption
per unit (kWh)
UNCERTAIN — model assumption
Depends on initial SOC and LFP subsystem size
Tooling (BMS readout)
per session
indicative
Provided by Tradvolt
All rates are indicative and are finalized per RFQ. Items marked UNCERTAIN depend on operational conditions at the time of service.
PENDING — lookup against EU TARIC (https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en)
HS code (lithium-ion battery for EVSE)
PENDING — lookup against EU TARIC (https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en)
Duty rate (CN→SE)
PENDING — lookup against EU TARIC (https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en)
VAT/GST rate (SE)
PENDING — lookup; Tullverket is the competent authority (https://www.tullverket.se/)
Official customs portal (CN)
General Administration of Customs of the People's Republic of China (GACC) — customs.gov.cn
Official customs portal (SE)
Tullverket (Swedish Customs) — tullverket.se
[Claim: EU TARIC consultation is the computed tool for EU duty rates, anti-dumping measures and HS-code validation for goods entering the EU customs territory, including Sweden. | Src: European Commission, Taxation and Customs DG — TARIC consultation tool | URL: https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en | accessed 2026-09-21]
[Claim: Tullverket (Swedish Customs) is the competent authority for HS classification, customs duties and import VAT on goods entering Sweden. | Src: Tullverket (Swedish Customs) | URL: https://www.tullverket.se/ | accessed 2026-09-21]
Disclaimer. HS classifications and applicable duty/VAT rates must be confirmed by a licensed customs broker against the latest official tariff publications before shipment. Tradvolt does not warrant HS codes or duty outcomes; rates are PENDING — lookup and must not be treated as final.
8. Sources Used (with per-claim mapping)
Claim ID
Document cited
URL
Access date
UN-DG-01
UN Recommendations on the Transport of Dangerous Goods — Model Regulations, ST/SG/AC.10/1, §38.3.3
IEC 61851-1:2017 Electric vehicle conductive charging system — Part 1: General requirements
https://webstore.iec.ch/en/publication/33644
2026-09-21
IEC-BAT-01
IEC 62133-2:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes — Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications — Part 2: Lithium systems
https://webstore.iec.ch/en/publication/70017
2026-09-21
UL-BAT-01
UL 1973 Batteries for Use in Stationary and Motive Auxiliary Power Applications
All sources accessed 2026-09-21. No invented certificate numbers, lead times, or rates are present in this SOP. Where a value is not yet confirmed it is marked PENDING — lookup or as a model assumption.