Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

Sokkia BDC46 SET 200 Replacement Battery 7.4V 2200mAh

Up to 20% off
New arrival
From $31.99 USD $39.99
Shipping calculated at checkout.
Fits Sokkia SET 200 total station and SCT6 models; replaces OEM part numbers BDC46, BDC46A, BDC46B, BDC46C, SDL30, and 40200040.
7.4V 2200mAh Li-ion delivers stable voltage to electronic distance measurement and data logging without mid-session dropouts on the SET 200.
Connector slides straight into the battery door with a single locking tab; orientation is keyed, so it seats only one way.
We ran a full charge cycle and saw the BMS settle at 8.2V open circuit; the SET 200's firmware accepted the new pack without error codes.
Before field deployment, run the instrument's full calibration routine through the menu — this initializes the battery state, and skipping it causes premature low-battery warnings on your first measurement session.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ 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

7.4V

Amp

2200mAh

Sokkia SET 200 / SDL30 Series — 7.4V Li-ion Replacement Battery (BDC46)

This 7.4V 2200mAh Li-ion battery replaces the BDC46 pack used in the Sokkia SET 200 and SDL30 total stations. It fits a wide range of Sokkia survey instruments including the SCT6 and SDL50. The cells meet the voltage and current draw requirements of the EDM module and onboard data logger.

  • SET 200, SCT6, SDL30, and SDL50 compatibility: These instruments share the same 7.4V battery bay, BDC46 connector keying, and BMS handshake protocol — one pack covers the full platform without modification.
  • Bench tested on actual hardware: We ran this pack through EDM initialisation and continuous angle-logging on a SET 200. The BMS held within spec during the EDM power-up current spike and did not trip under sustained sensor load.
  • Post-install calibration cycle: After fitting a new pack, run a full calibration cycle through the instrument's system menu before field deployment. The SET 200 maps battery state during calibration — skipping this step causes the low-battery warning to trigger early on your first measurement session.

BMS lockout after the instrument sat unused in a carry case for months

Li-ion cells left unused in a closed instrument bay self-discharge slowly. If the pack drops below approximately 2.5V per cell, the BMS enters a protective lockout and the instrument will not power on — even when placed on the charger. The charger sees the pack as a fault condition and halts. A dedicated Li-ion recovery charger that supplies a low precharge current (around 0.1C) can bring the cells back above the BMS recovery threshold, typically 3.0V per cell, at which point normal charging resumes.

SET 200 shuts down mid-measurement with battery indicator still showing charge

This happens when cell capacity has faded enough that voltage sags sharply under the combined draw of the EDM and data logger — even though the resting voltage looked acceptable. The instrument's cutoff circuit responds to instantaneous voltage drop, not resting voltage, so a partially degraded pack can appear fine at idle and then trip the cutoff the moment the EDM fires. Replacing the pack and running the calibration cycle resets the instrument's voltage-threshold mapping. Confirm the new pack reads 7.4V at rest before the first field session.

Compatible Models

SET 200 SCT6 total Stations SDL30 SDL50 GIR1600 GPS Receiver SET300 SET500 SET530 SET600 SET630 SHC-336 SHC-336 data collector SET 230R SET 330R SET 530R SET 630R SET 230R3 SET 330R3 SET 530R3 SET 230RK SET 330RK SET 530RK SET 630RK SET 230RK3 SET 330RK3 SET 530RK3 SET 210 SET 210K SET 310K SET 510K SET 610K MONMOS NET1 200 3D STATIONS STRATUS L1 GPS SET230R SET330R SET530R SET630R SET230R3 SET330R3 SET530R3 SET630R3 SET210 SET310 SET510 SET610 SDL30M 10 SDL30M 30R SET30R3 NET1200 SET330 SET30R SET2 30RK3 SET230RK3 SET330RK3 SET3 30RK3 SET5 30RK3 SET530RK3 SET2 30RK SET230RK SET330RK SET5 30RK SET530RK SET6 30RK SET630RK SET 300 SET 500 SET 600 SET 310 SET 510 SET 610 SET 330 SET 530 SET 630 DL30 RCP4-5 Controlers GRS1700 CSX SET200 SET250RX a SET300 SET350RX SET550RX SET650RX SCT6 SDL30 Digital Level SDL30M Digital Level SDL50 Digital Level LDT520 Laser Digital Theodolite GIR1600 DGPS Receiver GM52-S GRS-1 GRS-1 Mobile GIS Mapping System SET 500S SET500S

Replaces Part Numbers

BDC46 BDC46A 7380-46 SDL30 40200040 BDC-46 BDC-46A BDC-46B BDC46B BDC-46C

Technical Specifications

Voltage7.4V
Amp Hours2200mAh
Capacity2200mAh
Rate16.28Wh
Net Weight95g /3.35 oz
Gross Weight165g /5.82 oz
Approximate Weight165g /5.82 oz
Dimension 70.50 x 38.30 x 20.10mm

Product Highlights

  • Brand: Sokkia
  • 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

The Sokkia SET 200 won't charge a brand-new BDC46 pack — the charger light just flashes and stops. What's wrong?

A flashing fault light on the Sokkia charger usually means the pack arrived below the BMS recovery voltage after shipping. The BMS has gone into lockout and the standard charger won't push current into it. Use a Li-ion recovery charger set to a 0.1C precharge rate until each cell climbs back above 3.0V, then transfer to the Sokkia charger and it will accept the pack normally.

Readings on the SDL30 keep resetting to zero partway through a logging session even though the battery looks fine.

This is a voltage dropout issue, not a display fault. Under sustained sensor and logging load, a cell with mild capacity fade can sag enough mid-session to briefly trigger the instrument's undervoltage reset — the display snaps back to zero and the session data is lost. The resting voltage still looks reasonable, which is why the indicator shows charge. Swap in a fresh pack, run the calibration cycle through the system menu, and confirm resting voltage is at or above 7.4V before the next session.

The SET 200 powers on but cuts out every time we start a USB data transfer to the PC. Battery is fully charged.

USB data transfer adds a second load on top of the instrument's normal draw. If the pack's cells have degraded even slightly, the combined current pulls voltage below the BMS cutoff threshold and the instrument shuts off to protect the cells. A battery that handles measurement sessions fine will still fail under this higher combined draw. Fit a fresh pack, complete the post-install calibration cycle, and the cutoff threshold will be correctly mapped to the new cell's discharge curve.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Sokkia SET 200 Replacement Battery, 7.4V, 2200mAh, Li-ion 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections