Panasonic ER-1510 Compatible Battery 1.2V 2000mAh Ni-MH
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Panasonic ER-1510 Compatible Battery 1.2V 2000mAh Ni-MH - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
Delivery and Shipping
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Disclaimer
Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Panasonic ER-1510 Compatible Battery 1.2V 2000mAh Ni-MH - is backordered and will ship as soon as it is back in stock.
Voltage
1.2V
Amp
2000mAh
Panasonic ER-1510 / ER-1611 Series — 1.2V Ni-MH Replacement Battery (WER1511L2508)
This is a 1.2V, 2000mAh Ni-MH replacement battery for Panasonic electric shavers including the ER-1510, ER-1511, ER-1610, and ER-1611. It replaces OEM part numbers WER1511L2508, WER160L2504, WER160L2506, WES2047L2508, and WER154L2504. The cell dimensions are 54.10 × 14.20 × 14.20mm, matching the original fitment in the shaver housing.
- ER-1510 / ER-1610 platform compatibility: These shaver lines share a common single-cell Ni-MH bay, the same 1.2V nominal voltage rail, and the same foil-motor drive circuit. One replacement cell covers the full range without any modification to the contact strips or connector orientation.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the ER-1510 platform. The BMS accepted the cell without a fault flag, the charge termination triggered at the correct delta-V peak, and motor speed held consistent across the full discharge curve.
- Charging port care after wet shaving: For waterproof models in this range, dry the charging port completely before connecting to the charger. Moisture bridging the charging contacts causes a protection trip that the shaver reports as a dead battery rather than a charging error — a dry contact fix resolves it before assuming the cell has failed.
Capacity fade from daily partial charging on the ER-1510
Ni-MH cells in this shaver degrade faster when recharged daily before the battery is meaningfully depleted. The charge termination logic detects a delta-V peak, but shallow cycles compress the voltage curve — eventually the charger terminates early on a false peak. The cell never reaches full charge, and the indicator drifts out of sync with actual capacity. Running the shaver to a low state before recharging resets this drift and extends cell life.
Motor speed dropping before the indicator reaches empty
This happens when the cell's internal resistance has risen enough to cause voltage sag under motor load. The shaver's indicator reads state of charge at rest voltage, not under load — so it can show partial charge while the motor already sees insufficient voltage to maintain speed. A fresh cell holds the voltage rail above 1.0V under load through most of its discharge. If motor drag returns immediately after installing this replacement, check that the charging contacts are clean and seating fully before suspecting the cell.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Panasonic
- Manufacturer: CS
- Series: Standard
- Color: Green
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My ER-1510 shaver stops cutting smoothly halfway through a shave but the battery indicator still shows charge — what's happening?
This is voltage sag under motor load. The indicator reads the cell's resting voltage, not what it delivers when the motor is pulling current — so the display lags behind real capacity. A cell with risen internal resistance drops below the motor's minimum operating voltage before the indicator catches up. Install the replacement cell, run a full charge cycle to delta-V termination, then test under load — motor speed should hold steady through the shave.
After cleaning my shaver under the tap, it won't charge in the dock even though the battery is flat — is the dock broken?
Usually not. Moisture bridging the charging contacts causes a BMS protection trip, and the shaver reports this as a battery fault rather than a charging error. Remove the shaver from the dock, dry the charging port and contact pins thoroughly — a dry cloth followed by 10–15 minutes of air drying is enough. Reattach to the dock; if the charge light comes on, the contacts were the issue, not the cell or dock.
I replaced the battery in my ER-1611 but it's warm to the touch after a longer shave session — is that normal?
Some warmth is expected. A Ni-MH cell discharging through a foil-motor drive in a compact housing will generate heat — both the motor and the cell contribute. The housing has limited thermal mass, so heat concentrates quickly. It becomes a concern only if the shaver cuts out mid-use or the housing is too hot to hold comfortably — that points to a BMS thermal trip. If it stays warm but functional, no action is needed; if it cuts out, let it cool to room temperature before recharging.
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