Lithium battery specification RFP template — procurement checklist for fleet buyers

• Table of Contents

1. Required specification dimensions
2. Safety certification requirements
3. Warranty term comparison framework
4. Service support evaluation

Specifying a lithium auxiliary battery for fleet rollout demands more rigour than a typical lead-acid replacement. This RFP template covers the 9 dimensions fleet engineering and procurement teams should require from supplier proposals to ensure defensible selection and long-term service support.

Required specification dimensions

1. Chemistry (LFP/NMC) with justification. 2. Rated capacity (Ah) and energy (Wh). 3. Operating voltage range and nominal voltage. 4. C-rate (continuous, peak) for charge and discharge. 5. Operating temperature range. 6. BMS protocol and diagnostic capability. 7. Safety certification (UN38.3, UL 2580, IEC 62619). 8. Warranty terms (years, cycles, capacity retention). 9. Service support and field parts availability.

Safety certification requirements

UN38.3 (transport safety) is mandatory. UL 2580 (vehicle safety) is best practice for North American adoption. IEC 62619 (industrial safety) is best practice for European adoption. Verify certification documents during evaluation; do not accept supplier verbal claims.

Warranty term comparison framework

Compare: warranty years, cycle warranty, capacity retention guarantee at end of warranty period, exclusions and conditions, claim processing time, in-warranty replacement logistics. A 5-year/3000-cycle/70% capacity warranty is a strong commercial standard.

Service support evaluation

Field parts availability in service territory, dealer technician access to diagnostic tool, firmware update capability, escalation path to factory technical, documented mean-time-to-repair. These factors materially affect long-term fleet TCO and uptime.

Frequently asked questions

Why is RFP rigour important for lithium battery procurement?

Lithium investment is significant; specification gaps lead to long-term cost. Structured RFP ensures defensible selection and supplier accountability.

What safety certification should I require?

UN38.3 mandatory; UL 2580 or IEC 62619 best practice depending on operating territory. Verify documents directly.

Is warranty term comparable across suppliers?

Not directly. Use the warranty framework to normalise comparison: years × cycles × capacity retention × claim processing × replacement logistics.