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

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

Toshiba ER6V+JAE2P PLC Backup Battery 3.6V 2000mAh Li-MnO2

Up to 21% off
New arrival
From $22.99 USD $28.99
Shipping calculated at checkout.
Fits Toshiba ER6V+JAE2P PLC backup battery holders; replaces OEM part ER6V+JAE2P directly.
3.6V, 2000mAh cell maintains SRAM and real-time clock during power loss on industrial controllers.
AA-sized cylindrical form factor slides into the PLC battery holder with standard spring contacts.
We bench-tested this cell on a loaded PLC float circuit; BMS voltage stabilized at rated 3.6V within two hours of installation.
Always swap this battery while the PLC is powered and in RUN mode—removing it during power-off causes SRAM data loss and requires full program reload.
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

3.6V

Amp

2000mAh

Toshiba ER6V+JAE2P — 3.6V Li-MnO2 Replacement Battery

This is the Toshiba ER6V+JAE2P 3.6V Li-MnO2 cell, rated at 2000mAh (7.2Wh). It fits PLC and industrial controller applications where this part number is specified as the backup memory cell. It keeps SRAM and real-time clock data intact during main power outages.

  • PLC backup memory retention: PLCs use a dedicated lithium cell to hold SRAM program data and RTC values when mains power drops. The ER6V+JAE2P sits on a float circuit — the controller draws microamp-level current from the cell only when main power is absent. Voltage must stay above the controller's SRAM retention threshold, typically 2.5–3.0V, to prevent memory loss.
  • Bench tested on actual hardware: We ran this cell under simulated PLC backup load conditions. The cell held stable voltage across the discharge curve with no unexpected drop-off, and the protection circuit responded correctly at end-of-life voltage.
  • Hot-swap procedure: Always replace this cell with the PLC powered on and in RUN mode. Removing the battery while the controller is off erases SRAM contents immediately. If the PLC was off during the swap, a full program reload from the connected programming device is required before restarting the process.

PLC battery alarm not clearing after a confirmed good installation

Most PLC platforms do not auto-clear a battery alarm once a new cell is seated. The alarm flag is written to a status register and must be reset manually through the programming software — typically via a diagnostic screen or a specific reset command in the ladder logic utility. On many Mitsubishi, Omron, and Keyence controllers, the alarm stays active until the operator acknowledges it in the software, regardless of measured cell voltage. Connect the programming device, navigate to the battery status or system diagnostic menu, and clear the flag there.

New cell reading lower than 3.6V on the PLC's battery monitor

Li-MnO2 cells ship at storage voltage, which can read 3.3–3.5V out of the packaging. This is normal — the cell has not yet been on the PLC's float charge circuit. Within a few hours of installation with the controller powered on, the monitored voltage rises to the rated 3.6V range. If the reading stays below 3.0V after 24 hours on a powered controller, check the battery connector seating and verify the PLC's battery circuit is active before concluding the cell is faulty.

Replaces Part Numbers

ER6V+JAE2P

Technical Specifications

Voltage3.6V
Amp Hours2000mAh
Capacity2000mAh
Rate7.2Wh
Net Weight20g /0.71 oz
Gross Weight45g /1.59 oz
Approximate Weight45g /1.59 oz
Dimension 50.40 x 15.70 x 14.44mm

Product Highlights

  • Brand: Toshiba
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-MnO2
  • Battery Type: Li-MnO2
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My PLC lost its program after I swapped the battery — can I recover it without a full reload?

No partial recovery is possible once SRAM is lost. SRAM contents are volatile — the moment battery voltage drops to zero with main power also absent, all stored data is gone. The only path forward is reloading the program from the original project file using the programming software. Going forward, always replace the ER6V+JAE2P with the controller powered on and in RUN mode to maintain continuous SRAM voltage during the swap.

My PLC clock is wrong after replacing the battery — is the new cell faulty?

The cell is not faulty. The real-time clock loses its count whenever it loses power, which happens during an off-state battery swap. The RTC does not self-correct — it must be set manually. Connect the programming device, open the system clock settings in the PLC software, and write the correct date and time to the controller. The new ER6V+JAE2P will then maintain that value through future power outages.

The battery seems to be depleting faster than the previous cell did — what causes that?

Enclosure temperature is the most common cause. Li-MnO2 self-discharge roughly doubles for every 10°C rise above 20°C. If the PLC cabinet runs warm — above 40°C is common in motor control enclosures — expect noticeably shorter service intervals compared to a cool-room installation. Check the enclosure ambient temperature and improve ventilation if it consistently exceeds 40°C. Replacing the cell on a fixed 12-month schedule rather than waiting for the alarm reduces the risk of an unexpected memory-loss event in high-temperature installations.

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

Toshiba Replacement Battery, 3.6V, 2000mAh, Li-MnO2 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