Warranty / Rebuild Guarantee

Warranty & Rebuild Guarantee

At RenewSpark, we stand behind our work. This page explains what’s covered, for how long, and how to file a claim for new packs, rebuilt/refurbished packs, and our rebuild service.

Coverage at a Glance

  • New Battery Packs: 12-month limited warranty against defects in materials and workmanship, unless a different period is stated on the product page. (Some third-party brands may follow the manufacturer’s warranty; if so, we’ll help you process it.)
  • Rebuilt / Refurbished Packs (sold by RenewSpark): 90-day limited warranty against workmanship and cell defects.
  • Rebuild Service (we rebuild your pack): 90-day workmanship warranty covering defects in the cells we installed, our spot-welding, wiring, insulation, and BMS installation (if replaced by RenewSpark).

Warranty period begins on the delivery date shown by the carrier.

What’s Covered

  • Defective cells supplied/installed by RenewSpark (within the applicable warranty period).
  • Failed or defective BMS units installed by RenewSpark as part of the sale/service.
  • Poor connections, cold welds, or workmanship issues on packs we built or rebuilt.
  • Dead-on-arrival (DOA) units reported within 30 days of delivery.

What’s Not Covered (Exclusions)

  • Normal capacity loss over time and cycles (expected with all lithium-ion batteries).
  • Damage from misuse, drops/impact, punctures, water ingress, corrosion, overheating, or storage above 140°F (60°C) or below -4°F (-20°C).
  • Use with incompatible tools/controllers/chargers, reverse polarity, short circuits, or modification of wiring/case.
  • Packs opened or serviced by a third party after delivery.
  • Proprietary/encrypted systems that reject non-OEM BMS (if customer requests non-OEM rebuild).
  • Non-lithium chemistries (NiCd, NiMH, lead-acid, etc.).

Important: For e-bike/scooter applications, range and performance depend on rider weight, terrain, temperature, tire pressure, controller limits, and riding style. Range claims are not a warranty condition.

Safety & Usage Requirements

  • Use only chargers that match the pack voltage and chemistry (lithium-ion).
  • Do not bypass or disable the BMS.
  • Store packs at ~40–60% charge if not used for 30+ days; recharge every 60–90 days.
  • Keep vents/ports dry; avoid pressure washing or submersion.

How to File a Warranty Claim

  1. Contact us first: Email support@renewspark.com with your order number, description of the issue, photos/video, and the tool/bike/scooter/charger used.
  2. Receive an RMA: We’ll reply with troubleshooting steps and, if needed, an RMA number plus the correct return/inspection address. Please do not ship any lithium battery without an RMA.
  3. Pack safely for ground shipping: Cover terminals (tape/caps), place each pack in a plastic bag, cushion well, and ship via UPS/USPS Ground (no air).
  4. Evaluation: Allow 5–7 business days after receipt for testing. If a defect covered by this warranty is confirmed, we will repair, replace, or issue store credit at RenewSpark’s discretion.

DOA within 30 days: If reported and verified as DOA within 30 days of delivery, we will provide a prepaid return label or equivalent credit. For claims after 30 days, return shipping to RenewSpark is the customer’s responsibility.

Special Notes by Product Type

New Packs

  • RenewSpark-branded new packs: 12-month limited warranty (unless a different term is stated on the product page).
  • Third-party brands: covered by the manufacturer’s warranty; we’ll assist with documentation and next steps.

Rebuilt / Refurbished Packs (Sold by RenewSpark)

  • 90-day limited warranty on RenewSpark workmanship, cells installed, and BMS installed by us.
  • Housings/cases and external wear are cosmetic and not covered unless affecting function.

Rebuild Service (Your Pack Rebuilt)

  • 90-day workmanship warranty for cells, welds, insulation, and any BMS we installed.
  • If your original BMS/case is reused at your request, failures attributable to those original parts are not covered.

Trade-In Credits

  • Trade-in credits are non-refundable and may be applied toward new packs, rebuilt packs, or our rebuild service.
  • Packs deemed unsafe, non-lithium, or otherwise ineligible may be recycled without credit.

Limitations

  • Warranty applies to the original purchaser and is non-transferable.
  • Our maximum liability is limited to the purchase price paid.
  • This warranty provides specific legal rights; you may have other rights which vary by state.

Contact

Questions or claims:
Email: support@renewspark.com
Mail: RenewSpark, PO Box 10174, Westminster, CA 92685

Please do not ship any returns or warranty items without an approved RMA and the correct shipping address. Lithium batteries must be shipped via ground service with terminals protected.