18650 Battery Pair for Elegoo Smart Robot Car
Two rechargeable 18650 cells for the car's battery holder. Tired cells are the single most common cause of 'the robot behaves differently every time'.
Fitment notes
Standard 18650 cells for the Elegoo car battery holder. Confirm whether your holder requires flat-top or button-top cells before ordering.
Warranty
90-day warranty against manufacturing defects from delivery. Impact damage, normal wear and incorrect fitting are not covered. Warranted by RobotWorld — an independent supplier, not an authorised dealer. Statutory rights unaffected.
Fits these machines
Specifications
| Format | 18650 rechargeable lithium-ion |
|---|---|
| Quantity | 2 |
| Condition | Third-party compatible |
| Minimum order | 1 |
| Lead time | 10 days |
Why this matters in a classroom
A car on weak cells slows down as the lesson goes on. Motor speed drops, the line-follower starts missing turns, and the class concludes their code is wrong. Fresh cells remove a whole category of phantom bugs.
Managing a class set
Label cells by car and charge them together. Mixing a new cell with an old one in series is worse than two evenly aged cells.
Safety
Lithium cells for a school set should be bought, stored and charged as a managed batch — tell us your fleet size and we will quote accordingly.