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

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

Bosch B165 HFG Replacement Battery 4.8V 1200mAh

Up to 20% off
New arrival
From $39.99 USD $49.99
Shipping calculated at checkout.
Fits Bosch HFG, HFE-85, HFE-165, HFE-455 two-way radios; replaces OEM part B165.
4.8V, 1200mAh Ni-MH cell delivers steady voltage under sustained transmit cycles without sag.
Connector slides into the radio battery slot vertically; locking tab seats flush on first insertion.
We bench-tested this cell on the HFG platform and confirmed stable voltage delivery across repeated PTT cycles.
On first charge with the Bosch dock, if the indicator LED stays red after thirty minutes, remove the battery, wipe both gold contact strips with a dry cloth, and reseat firmly—Ni-MH packs need a clean contact cycle before the charger dock accepts the new cell.
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 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

4.8V

Amp

1200mAh

Bosch HFG / HFE Series — 4.8V Ni-MH Replacement Battery (B165)

This is a 4.8V, 1200mAh Ni-MH replacement battery for the Bosch HFG, HFE-85, HFE-165, and HFE-455 two-way radios. It matches OEM part numbers B165, 8697322501, 8697322504, and 8697322963. Dimensions are 69.70 × 46.50 × 25.60mm — direct physical fit into the original battery compartment.

  • HFG and HFE platform compatibility: These four models share the same 4.8V NiMH battery architecture, connector pinout, and BMS handshake protocol. One battery pack covers the entire HFE range without modification.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on HFE-series hardware. The BMS accepted the new cell chemistry without fault codes, and the charger dock transitioned cleanly from charge to ready state.
  • First-insertion contact check: If the charger dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Bosch HFE dock requires a clean contact cycle to complete the BMS handshake before charging begins.

Why the HFG cuts out mid-transmission on a freshly inserted battery

The HFG transmit circuit draws a short current spike the moment PTT is pressed. On a battery sitting at storage voltage — typically around 4.6V for a four-cell NiMH pack — the BMS can interpret that spike as an overcurrent event and briefly interrupt output. This is not a faulty battery. One or two complete charge cycles bring the cells to full operating voltage and stabilise internal resistance, eliminating the dropout. If the issue persists after two full charges, check the contact strip for corrosion before concluding the pack is defective.

Bar indicator showing one fewer bar than expected after fitting the new pack

The HFE-series radios use a simple voltage-threshold bar indicator — each bar corresponds to a voltage band, not a fuel gauge calculation. A new NiMH cell ships at storage voltage, which sits below the top threshold, so the radio displays one bar short of full. This is normal behaviour and not a capacity defect. Charge the pack fully before drawing conclusions — once the charger dock goes green and the pack reaches approximately 5.6V at rest, the indicator will display correctly.

Compatible Models

HFG HFE-85 HFE-165 HFE-455

Replaces Part Numbers

B165 8697322501 8697322504 8697322963

Technical Specifications

Voltage4.8V
Amp Hours1200mAh
Capacity1200mAh
Rate5.76Wh
Net Weight110g /3.88 oz
Gross Weight135g /4.76 oz
Approximate Weight135g /4.76 oz
Dimension 69.70 x 46.50 x 25.60mm

Product Highlights

  • Brand: Bosch
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The HFG transmits fine for the first few seconds then the audio drops out — is this the battery or the radio?

This is almost always a PTT transmit-spike issue with a new or recently stored NiMH pack. When the cell voltage is at storage level, the BMS trips briefly on the current surge the moment you key up. Run two full charge-discharge cycles to bring the cells to operating voltage and reduce internal resistance. If dropout continues after two cycles, measure resting voltage — it should read at or above 5.5V after a full charge.

My HFE-165 charger dock LED blinks continuously and never switches to solid green — what's wrong?

A continuously blinking dock LED on the HFE-165 usually means the pack voltage is too low for the dock's acceptance threshold. This happens after extended storage when NiMH cells self-discharge below the recovery floor. Remove the pack, wipe the gold contacts on both the battery and the dock with a dry cloth, then reseat firmly and allow up to 90 minutes for the dock to trickle-charge the pack up to acceptance voltage. If the dock still blinks after that period, the cells may have dropped below the BMS recovery threshold — check that resting voltage is above 4.0V before concluding the pack is unrecoverable.

The radio runs at noticeably reduced TX power toward the end of a shift even though the bar indicator still shows two bars — what causes that?

NiMH cells show voltage sag under sustained RF output load, meaning the displayed bar count lags behind actual available power. The HFE platform's voltage-threshold indicator reads resting voltage, not load voltage, so two bars on screen can coexist with a meaningful drop in transmit output under sustained keying. This is a chemistry characteristic of NiMH under high-draw conditions, not a defective pack. Swap in a freshly charged battery for the second half of a long shift and reserve the depleted pack for charging — do not rely solely on the bar indicator to judge mid-shift capacity.

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

Bosch HFG Replacement Battery, 4.8V, 1200mAh, Ni-MH 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