About
About RenewSpark
Parts, cells, and hardware for building custom batteries — power tools, e-bikes & scooters, DIY projects, and more.
What We Do
RenewSpark is your parts counter for battery building. We stock the cells, BMS boards, nickel, connectors, cases, and tools you need to build or refresh packs for power tools, e-bikes & scooters, portable power, robotics, and hobby projects.
Note: We no longer offer a mail-in rebuild/repair service. Instead, we focus 100% on supplying reliable components and clear guidance so you can build with confidence (or buy ready components and cases to assemble your own pack).
Who We Serve
- DIY builders & makers assembling custom packs end-to-end.
- Power-tool users refreshing packs with new cells, cases, and hardware.
- E-bike & scooter owners upgrading capacity or replacing worn components.
- Small shops & labs that need repeatable parts sourcing at fair prices.
Fair Value
Competitive pricing with quality control—no mystery materials or bait-and-switch.
Safety First
Working with lithium-ion cells requires proper tools, knowledge, and protective equipment. Always validate polarity and wiring, use appropriate BMS protection, insulate with fish-paper/Kapton, and follow local regulations for transport and disposal. If you’re unsure about a step, ask us before proceeding.
Quick Answers
Can you help me select compatible parts?
Yes—share your target voltage (S count), capacity (P count), discharge needs, case type, and connector style. We’ll suggest parts that fit.
Do you sell complete, ready-to-use batteries?
We primarily sell components. When complete units are offered, they’ll be clearly listed in the product title and description.
