Panasonic ER160 Replacement Battery 1.2V 2000mAh Ni-MH
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Panasonic ER160 Replacement 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.
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Delivery and Shipping
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Panasonic ER160 Replacement 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 ER160 / ER1610 Series — 1.2V Ni-MH Replacement Battery (WER160L2506)
This is a 1.2V, 2000mAh Ni-MH replacement battery for the Panasonic ER160 series electric shaver. It fits the ER160, ER161, ER1511, and ER1610 among a wider range of compatible models. The cell measures 54.10 × 14.20 × 14.20mm and replaces OEM part numbers including WER160L2506, WER1411L2508, and WER2302L2509.
- ER160 series compatibility: These models share the same cell format, voltage rail, and internal connector layout. The same 1.2V Ni-MH cell services the motor drive circuit across all variants in this range — that is why one part number covers ER161, ER1511, and ER1610 alongside the base ER160.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on an ER-series shaver body. The BMS accepted the cell without fault codes, and motor response under load matched the behaviour of an original cell at comparable state of charge.
- Port drying before charge: If you rinse the shaver head after use, let the charging port air dry completely before docking. Moisture bridging the charge contacts triggers a protection fault the shaver reports as a dead battery — not a charging error. Ten minutes face-down on a towel is enough.
Capacity fade from daily partial charging on the ER160
Ni-MH cells used in shavers are susceptible to voltage depression when repeatedly charged from a shallow discharge. The shaver's charge indicator tracks voltage, not true capacity — so the indicator can show full while the usable capacity has already dropped. Daily top-up charging without a full discharge cycle compounds this over weeks. Running the shaver until the motor audibly slows before the next charge resets the voltage reference and slows fade.
Motor speed drops before the low-battery indicator lights up
Under motor load the cell voltage sags below what the circuit expects before the BMS cutoff threshold is reached. The shaver's indicator reads resting voltage, not load voltage — so the light stays off while the motor has already lost torque. This is a normal characteristic of an ageing or deeply cycled Ni-MH cell, not a shaver fault. Fitting a fresh cell and allowing one full charge cycle to 1.2V before first use restores consistent motor speed under load.
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 ER160 shaver docked overnight and still won't turn on — is the battery completely dead?
A Ni-MH cell that has discharged below roughly 0.9V will trigger a BMS protection state that blocks charging until the cell recovers slightly. The dock may not deliver enough current to pull the cell back from that level. Connect the shaver directly via its AC adapter rather than the dock, leave it for 20–30 minutes, then attempt to power on — if the motor briefly pulses, the cell is recovering and a full charge will complete normally.
The ER1610 shaver gets noticeably warm on the housing during a long grooming session — is that a battery fault?
Heat in this housing comes from two sources stacked together: motor current draw and the Ni-MH cell discharging under load in a small enclosed shell. Neither alone causes the warmth — it is the combination. We measured surface temperature on the bench and it stays within normal operating range for this cell chemistry. If the shaver becomes hot enough to be uncomfortable to hold, stop and let it cool for five minutes, then check whether the shaver head mechanism is binding, which increases motor current and discharge rate.
The charge contacts on my ER160 dock look clean, but the shaver won't charge — what should I check?
Cleaning product residue — soap, aftershave, or bathroom spray — leaves a non-conductive film on the dock pins that looks clean to the eye but breaks the charge circuit. Wipe both the dock pins and the shaver's charge contacts with a dry cotton swab, then with a swab lightly dampened with isopropyl alcohol, and let both surfaces dry fully. If the shaver still does not charge, check the dock pins for spring tension — a pin that does not compress and spring back needs to be replaced, not cleaned.
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