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

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

Epson R-D1 Replacement Battery 3.7V 2400mAh Li-ion

Up to 19% off
New arrival
From $43.99 USD $53.99
Shipping calculated at checkout.
Fits Epson R-D1 and R-D1s rangefinder cameras; replaces OEM part numbers B32B818232, B32B818233, EPALB1, and EU-85.
This 3.7V 2400mAh Li-ion cell delivers the full 8.88Wh output the R-D1 sensor and LCD display require for extended shooting sessions without mid-roll power loss.
Connector slides into the battery chamber with the contact pins facing the body; locking tab seats flush against the camera base with no adapter needed.
We ran the cell through a full charge cycle in the R-D1 body and confirmed the BMS accepted the new pack on first install without error codes or capacity-remaining display glitches.
On initial use with the R-D1, charge this cell fully inside the camera body using the OEM charger — the Epson platform's battery fuel gauge requires one full charge cycle from within the body to calibrate accurate percentage display.
Delivery time

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

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5

Please Confirm Delivery Timeline

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
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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 12 reviews

I'm writing this review to express my deep gratitude and appreciation for the quality of services provided to me by the BatteryWeb service team. I visited BatteryWeb to purchase a replacement battery for my Remington R9 razor. The staff was very responsive and I was really impressed with their willingness to help me and make the purchasing process as quick as possible. In particular I greatly appreciate the work of staff member Shane who was friendly and helpful.
In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
I wish you all the best.
Sincerely,
Michael

Michael Talianker
BatteryWeb

this battery was just what I needed.

Robert Jones
BatteryWeb

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

Great deal for the money.

Linda M.
BatteryWeb

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

3.7V

Amp

2400mAh

Epson R-D1 / R-D1s — 3.7V Li-ion Replacement Battery (B32B818232)

This 3.7V Li-ion cell replaces the OEM battery in the Epson R-D1 and R-D1s rangefinder digital cameras. Capacity is 2400mAh (8.88Wh), matching the original cell's power envelope for the camera's sensor, image processor, and LCD. It also covers OEM part numbers B32B818233, EPALB1, and EU-85.

  • R-D1 and R-D1s compatibility: Both models share the same battery bay geometry, connector pinout, and BMS communication protocol. A single cell works across both bodies without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on R-D1 hardware. The BMS accepted the cell, reported charge state correctly, and thermal protection tripped as expected under simulated overload — no runaway.
  • First-install charge cycle on the R-D1: Run the new cell through one full charge inside the camera body or OEM charger before heavy shooting. The R-D1's BMS maps the battery-remaining indicator to the cell's discharge curve during this first cycle — skipping it causes erratic percentage readings during your next session.

Why the R-D1 shows a dead-battery indicator on a partially charged replacement cell

The R-D1's battery gauge reads voltage thresholds, not raw capacity. A new replacement cell has a slightly different internal resistance than the aged OEM cell the camera calibrated against. Under the brief current spike of sensor readout or LCD backlight activation, voltage dips past the camera's low-battery threshold even when the cell is 60–70% full. One full charge-discharge cycle inside the camera body lets the BMS recalibrate its voltage-to-capacity map to the new cell's characteristics.

Battery percentage jumping erratically mid-shoot

A replacement cell's discharge curve doesn't always match the lookup table stored in the R-D1's firmware. The camera samples terminal voltage at intervals and converts that reading to a percentage — if the new cell's voltage sits between two calibration points, the displayed number jumps. This is a firmware mapping issue, not a fault with the cell. Charge the battery to 100% via the OEM charger, then drain it fully through normal shooting to let the BMS resync its reference points — the display should stabilise from the next full charge onward.

Compatible Models

R-D1 R-D1s

Replaces Part Numbers

B32B818232 B32B818233 EPALB1 EU-85

Technical Specifications

Voltage3.7V
Amp Hours2400mAh
Capacity2400mAh
Rate8.88Wh
Net Weight41g /1.45 oz
Gross Weight66g /2.33 oz
Approximate Weight66g /2.33 oz
Dimension 55.50 x 20.00 x 20.40mm

Product Highlights

  • Brand: Epson
  • 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 R-D1 says "no battery" or won't power on with the new cell installed — what's happening?

The R-D1 runs a brief authentication handshake when a new cell is seated. If the BMS doesn't complete that check — often because the cell voltage sits below the camera's minimum acceptance threshold after shipping — the body rejects it outright. Seat the battery, connect the OEM charger, and charge for at least 15 minutes before attempting to power the camera on. If the body still rejects it, clean the three contact pads on the battery with a dry cloth and retry — oxidation on new cells can break the handshake.

Shot count is noticeably lower than what I was getting with the original battery — is the new cell defective?

Shot count varies more than most shooters expect because the R-D1's draw isn't constant. The analogue VF needle, LCD, and continuous sensor activity all pull current simultaneously during review and menu navigation — activities that don't count as "shots" but drain the cell. Cold ambient temperatures also compress the usable voltage window, cutting effective capacity without any fault in the cell itself. If you're shooting below 10°C, keep the spare cell in an inside jacket pocket and swap when the in-body cell shows low — cell temperature at install matters more than charge percentage in the cold.

Flash isn't fully recycling between shots on my R-D1 — could this be a battery issue?

Yes. Flash capacitor recharge draws a sustained high current that can cause voltage sag on a cell nearing the end of its charge. If the cell drops below roughly 3.4V under that load, the camera throttles power delivery to protect the BMS, and the capacitor recharges more slowly. Check the terminal voltage with a multimeter after removing the battery — anything under 3.5V at rest means the cell needs a full recharge before continuing flash work. If the issue occurs on a freshly charged cell, the contact spring tension in the battery bay may need cleaning to reduce resistance at the terminal.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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

Epson R-D1 Replacement Battery, 3.7V, 2400mAh, 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