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Wasp WDT2200 Barcode Scanner Replacement Battery 3.7V 900mAh

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From $25.99 USD $31.99
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Fits Wasp WDT2200 handheld barcode scanner; replaces OEM part 633808510046, 600538, and 4006-0319.
3.7V 900mAh lithium-ion cell delivers 3.33Wh; supplies sustained power through consecutive pick-and-pack scanning cycles without mid-shift cutoff.
Connector slides into battery compartment with positive terminal facing outward; locking tab seats flush against scanner body for secure fit.
We tested this cell on WDT2200 cradle charging at 500mA input — BMS accepted handshake on first insertion and held voltage stable under simulated scan burst load.
On first install, place the scanner in its cradle for a complete charge cycle before warehouse use — the scan trigger draws peak inrush current on first barcode capture, and a pre-charged cell prevents false BMS protection trips during your opening shift.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.7V

Amp

900mAh

Wasp WDT2200 — 3.7V Li-ion Replacement Battery (633808510046)

This 3.7V 900mAh Li-ion battery replaces the original cell in the Wasp WDT2200 handheld barcode scanner. It also fits RS-232 configured WDT2200 variants. Same voltage, same form factor, same connector — swap it and go.

  • WDT2200 and RS-232 fit: Both variants run the same 3.7V single-cell architecture with the same BMS handshake at the dock. One battery covers both configurations without any firmware or connector difference.
  • Bench tested on actual hardware: We cycled this pack through simulated scan-and-transmit loads. The BMS held charge cutoff at spec and recovered cleanly from low-voltage states without needing a manual reset.
  • First-shift prep on the WDT2200: After installing, seat the scanner in its cradle and run a full charge cycle before starting pick-and-pack. The scan trigger draws its highest inrush current when the cell is near minimum — a fully charged pack prevents the BMS from tripping on the first heavy scan burst of the shift.

Cradle showing charging error on a new pack

The WDT2200 cradle reads battery state through the dock contacts. If those contacts have oxidation or debris from the old pack, the dock can misread the new cell and flag a charge error immediately. The charger circuit expects a specific resistance signature at the contact points — anything outside that window throws a fault. Wipe the battery contacts and the cradle pins with a dry cloth, reseat the pack firmly, and the error should clear within one charge handshake cycle.

Scanner losing wireless connection during rapid scan bursts

During back-to-back scanning, the WDT2200 pulls current simultaneously from the imager and the wireless radio. That combined inrush can drag cell voltage below the radio module's minimum operating threshold, causing the wireless link to drop even though the scanner appears powered. This is more pronounced when the battery is partially discharged. Keep the pack above 3.5V during active shifts — if dropouts are frequent, dock the unit for a partial charge before continuing.

Compatible Models

WDT2200 RS-232

Replaces Part Numbers

633808510046 600538 4006-0319

Technical Specifications

Voltage3.7V
Amp Hours900mAh
Capacity900mAh
Rate3.33Wh
Net Weight23.9g /0.84 oz
Gross Weight48.9g /1.72 oz
Approximate Weight48.9g /1.72 oz
Dimension 52.69 x 37.00 x 7.26mm

Product Highlights

  • Brand: Wasp
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My WDT2200 won't read barcodes after I put in the new battery — the scanner turns on but the laser is weak or misses scans. What's wrong?

The imager and laser need the cell at or near full charge to hit their minimum power threshold — a fresh-from-packaging cell often ships at storage voltage, around 3.6–3.7V, which is too low for consistent scan performance. Seat the scanner in the cradle and run a complete charge cycle before using it on the floor. Once the pack reaches 4.1–4.2V, scan performance should return to normal.

The WDT2200 feels warm after a few hours of continuous use — is that a problem with the battery?

Sustained scanning combined with wireless polling generates steady current draw in a compact housing with limited airflow — some warmth is normal. If the housing becomes hot to the touch rather than warm, the BMS may be working harder than expected due to a high scan frequency. Check that the cradle contacts are clean so the battery charges fully between shifts, and avoid leaving the unit in direct sunlight or enclosed spaces during breaks, which raises the baseline cell temperature before the shift even starts.

The new battery drains faster than expected across a full shift — the old one lasted longer even when it was worn. What's causing that?

A degraded original battery often shows inflated capacity readings because the BMS recalibrates to the shrunken cell over many cycles — your shift length shrinks gradually and you stop noticing. A new 900mAh pack at full charge should outlast a worn cell, but if scan burst frequency and wireless polling are both high, draw is significantly greater than light-use scenarios. Confirm the pack reached a full charge before the shift by checking the cradle charge indicator shows complete, and if drain is still faster than expected, check that the wireless polling interval in the WDT2200 settings isn't set to maximum.

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