We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular lithium battery pack, flat grey finish, 55mm by 27mm by 6.5mm

Estry

Estry 550mAh 3.7V Lithium Battery for DSi NDSiL NDSi C/TWL-A-BP TWL-003

SKU CH-3CAE-3XH9J

Replacement lithium battery for Nintendo DSi models, 550mAh at 3.7V with overcharge and short-circuit protection

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity550mAh
  • Battery Voltage3.7
  • 550 mAh capacity powers longer DSi play sessions
  • 7 V lithium chemistry matches original console specs
  • 09 × 27.04 × 6.51 mm form fits DSi, NDSiL and NDSi exactly
  • 0 g lightweight cell keeps handheld balance unchanged
  • ISO 9001, RoHS, CE, UN38.3 and MSDS certified for safety and quality

Direct replacement for Nintendo DSi

This Estry lithium cell matches the original 3.7 V 550 mAh specification for the DSi, DSi L and DSi C models. It fits the C/TWL-A-BP and TWL-003 battery compartments without modification. The pack weighs 38.0 g and measures 55.09 x 27.04 x 6.51 mm. Safety certifications include ISO9001, RoHS, CE, UN38.3 and MSDS.

Capacity and runtime headroom

The 550 mAh rating delivers 2.04 Wh of energy, which restores the handheld to its factory playtime between charges. Over-charge, over-discharge, over-voltage and short-circuit protection circuits help the cell hold that capacity through repeated cycles. Heavy backlight use or wireless play will drain the pack faster, so a second battery is practical for long sessions away from a charger.

Upgrade path and when to switch

This unit replaces a swollen, short-lived or non-holding original battery in any compatible DSi family console. The jump is worth it when the system shuts down early, the back cover bulges or charge cycles drop below an hour of typical play. It is not for users needing higher capacity than 550 mAh, a different voltage, or a pack that fits 3DS or 2DS models.

Highlights

  • 550 mAh capacity powers longer DSi play sessions
  • 7 V lithium chemistry matches original console specs
  • 09 × 27.04 × 6.51 mm form fits DSi, NDSiL and NDSi exactly
  • 0 g lightweight cell keeps handheld balance unchanged
  • ISO 9001, RoHS, CE, UN38.3 and MSDS certified for safety and quality

Specifications

BrandNIN
TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity550mAh
Battery Voltage3.7

Questions about this item

Will this 550mAh 3.7V lithium pack run in the original Nintendo DSi handheld without modification?

Yes, the battery matches the TWL-003 and C/TWL-A-BP part numbers used in the DSi, NDSiL and NDSi, so it fits the factory compartment and connector directly.

How can I confirm the replacement is charging and holding capacity correctly after installation?

Insert the pack, power on the console and watch the battery indicator reach full; then play until shutdown — a healthy 550mAh cell should deliver roughly the same play time as the original 2.04Wh battery.

Does the package include only the single 38.0g cell or are tools and adhesive strips supplied as well?

The listing specifies a 1-pack battery weighing 38.0g with dimensions 55.09 x 27.04 x 6.51mm; no screwdrivers, pry tools or adhesive are mentioned, so plan to source those separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.