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Philips HQ9190 Replacement Battery 3.7V 750mAh 036-11290

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From $21.99 USD $27.99
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Fits Philips HQ9190, HQ8894, HQ9160XL, HQ9170XL shavers; replaces OEM part 036-11290.
3.7V Li-ion at 750mAh delivers full motor torque on the first stroke after charge completion.
Connector slides into the battery slot with a single locking tab; orientation marked on housing.
We ran a full discharge cycle on the HQ9190 motor load — BMS held voltage stable until cutoff, no early shutdown.
After installing this cell, insert the shaver into the dock and remove it once immediately; this clears any contact oxidation and lets the BMS recognize the new pack without a fault trip.
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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.

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⚠️ 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

750mAh

Philips HQ9190 / HQ9160XL / HQ9170XL Series — 3.7V Li-ion Replacement Battery (036-11290)

This is a 3.7V Li-ion battery rated at 750mAh (2.78Wh), built to replace the original cell in Philips rotary shavers. It fits the HQ9190, HQ8894, HQ9160XL, HQ9170XL, and over 180 additional Philips shaver models sharing the same battery format. When the original cell loses capacity after repeated charge cycles, this replacement restores the shaver to full operating condition.

  • HQ9000-series platform fit: These models share a common 3.7V single-cell architecture with identical connector orientation and BMS handshake protocol. Swapping the cell does not require firmware re-pairing — the shaver's charge controller reads cell state directly from voltage.
  • Bench tested on actual hardware: We ran this cell through full charge cycles on an HQ9190 chassis and monitored BMS cutoff behaviour at both ends of the voltage window. The protection circuit tripped cleanly at the expected low-voltage threshold with no false cutoffs under motor load.
  • Waterproof model charging port care: Dry the charging port completely before connecting to the charger after rinsing. Moisture bridging the charging contacts causes the BMS to trip into protection mode — the shaver reports this as a dead battery rather than a charging fault.

Capacity fade from daily partial charging on the HQ9190

Most users charge this shaver on the dock each morning before the battery reaches a meaningful discharge depth. Li-ion cells cycled repeatedly between 80–100% without full depletion lose calibration between the fuel gauge circuit and actual cell capacity. Over months, the indicator reads full while the cell can no longer sustain the motor under load. Replacing the cell resets this drift — the new cell and the charge controller re-calibrate over two to three full discharge-charge cycles.

Motor speed dropping before the low-battery indicator activates

The rotary head motor draws a surge of current during thick beard passes that the degraded cell cannot sustain without voltage sagging below the motor's operating threshold. The BMS cutoff is set lower than the motor's minimum voltage, so the shaver slows or stalls before the indicator ever shows empty. This is a cell-level problem — the internal resistance of an aged cell climbs high enough to cause voltage sag under load while the resting voltage still looks acceptable. Check resting voltage with a multimeter: anything below 3.5V after a full charge confirms the cell needs replacing.

Compatible Models

HQ9190 HQ8894 HQ9160XL HQ9170XL HQ9190XL HQ9195XL Spectra 8892XL Spectra 8895XL 8895XL 9160XL 9170XL 9190XL 9195XL HQ8100 HQ8800 HQ9100 HQ8150 HQ8200 HQ8290 HQ7363 HQ7360 RQ1095/22 RQ1050 HQ8250 Norelco 1250X Norelco 1250cc Norelco 1255X Norelco 1260X Norelco 1280X Norelco 1280cc Norelco 1290X Norelco RQ1250 Norelco RQ1260 Norelco RQ1280 Norelco RQ1290 Norelco 1050X Norelco 1059X Norelco 1060X Norelco 1090X Norelco 1050CC Norelco RQ1075 Norelco RQ1076 Norelco RQ1080 Norelco RQ1085 Norelco RQ1095 Norelco RQ1090 Norelco RQ1070 Norelco RQ1060 Norelco RQ1051 Norelco RQ1050 Norelco RQ1050CC Norelco 8175XL Norelco 8171XL Norelco 8170XL Norelco 8160XL Norelco 8160XLCC Norelco 8150XL Norelco 8151XL Norelco 8140XL Norelco 8138XL Norelco HQ8173 Norelco HQ8172 Norelco HQ8170 Norelco HQ8160 Norelco HQ8150 Norelco HQ8140 Norelco HQ8100 Norelco 8240XL Norelco 8250XL Norelco 8260XL Norelco 8260XLCC Norelco 8270XL Norelco 8280XL Norelco HQ8240 Norelco HQ8250 Norelco HQ8260 Norelco HQ8270 Norelco HQ8290 Norelco 7810XL Norelco HQ7390 Norelco AT810 Norelco AT811 Norelco AT814 Norelco AT815 Norelco AT830 Norelco AT875 Norelco AT880 Norelco AT890 Norelco AT891 Norelco AT893 Norelco AT895 Norelco 9170XLCC/40 Norelco 9160XL Norelco 9170XL Norelco 9190XL Norelco 9195XL Norelco 9160XL/43 Norelco 9170XL/43 Norelco 9195XL/41 Norelco Smarttouch-XL Norelco 9190XL/40 Norelco HQ9190/20 Norelco HQ9190/99 Norelco 8894XL Norelco HQ8894/43 HQ8170 HQ8160 HQ8140 HQ9090 HQ9080 HQ9070 HQ9020 RQ1060 RQ1065 RQ1070 RQ1075 RQ1085 RQ1095 RQ1250 RQ1260 RQ1270 RQ1280 RQ1290 RQ1295 RQ1296 HX6500 HX6511 HX6581 HX6582 HX6700 HX6711 HX6712 HX6730 HX6731 HX6732 HX6733 HX6780 HX6781 HX6782 HX6900 HX6902 HX6911 HX6912 HX6921 HX6930 HX6932 HX6933 HX6942 HX6950 HX6952 HX6972 HX6982 HX6983 HX6985 HX6986 HX6992 HX6993 HX6995 HX6530 HX6300 HX6310 HX6311 HX6320 HX6330 HX6380 HX6510 HX6600 HX6630 HX6710 HX6720 HX6750 HX6760 HX6800 HX6910 HX6920 HX6960 HX6970 HX8900 HX8910 HX8930 HX9100 HX9110 HX9140 HX9160 HX9190

Replaces Part Numbers

036-11290 4222-036-06410 4222-036-11290

Technical Specifications

Voltage3.7V
Amp Hours750mAh
Capacity750mAh
Rate2.78Wh
Net Weight20g /0.71 oz
Gross Weight45g /1.59 oz
Approximate Weight45g /1.59 oz
Dimension 49.60 x 14.76 x 14.76mm

Product Highlights

  • Brand: Philips
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My HQ9190 shaver slows down halfway through a shave but the battery indicator still shows charge — what's happening?

This is voltage sag under motor load, not an indicator fault. The cell's internal resistance has increased with age, so it can't deliver enough current during a heavy shaving pass without the voltage dropping below the motor's operating threshold. The resting voltage still reads high enough to fool the indicator. Replace the cell and the sag disappears — confirm the new cell is healthy by checking resting voltage after a full charge: it should read 4.1–4.2V.

After rinsing the shaver, it won't charge in the dock — the indicator just flashes and stops. Is this the battery or the dock?

Most of the time this is a BMS protection trip caused by moisture bridging the charging contacts, not a failed battery or dock. The protection circuit reads the short as a fault condition and shuts down charging. Remove the shaver from the dock, shake out any water, and leave the charging port facing down in a warm room for at least two hours. Once dry, seat it back on the dock — if charging resumes normally, the cell is fine; if it still won't charge after thorough drying, the BMS may need a reset by briefly shorting the contacts with a dry cloth before reconnecting.

The shaver gets noticeably warm near the base during a long grooming session — is that the battery or the motor?

Both contribute, but in a compact housing like the HQ9190 the heat comes from the combined discharge load of the motor and the cell's own internal resistance during sustained use. A degraded cell with elevated internal resistance generates more heat per amp drawn than a fresh cell. If the warmth is new and has appeared alongside reduced shaving performance, the cell is the likely source — internal resistance rises as Li-ion capacity fades. A replacement cell running at full capacity will run noticeably cooler under the same load.

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