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

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

AMX Panjam 7.2V Ni-MH Replacement Battery 57-0962 3500mAh

Up to 19% off
New arrival
From $54.99 USD $67.99
Shipping calculated at checkout.
Fits AMX Panjam and Phast VPT-CP, VPN-CP units; replaces OEM part 57-0962.
7.2V 3500mAh Ni-MH pack delivers 25.2Wh for sustained field measurement sessions without voltage sag.
Connector slides onto AMX contact block with spring-loaded retention; orientation keyed to prevent reverse insertion.
We bench-tested this cell in a Panjam unit; BMS accepted the pack on first insertion with stable voltage ramp.
Before field deployment, run a full calibration cycle through the instrument menu — this lets the device map the new battery state and prevents premature low-battery warnings during your first measurement session.
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

7.2V

Amp

3500mAh

AMX Panjam / Phast VPT-CP / VPN-CP — 7.2V Ni-MH Replacement Battery (57-0962)

This is a 7.2V 3500mAh Ni-MH replacement for the AMX Panjam, Phast VPT-CP, and VPN-CP survey and test instruments. It replaces OEM part 57-0962 directly. Capacity is 25.2Wh — matching the original specification from the product data.

  • Panjam, VPT-CP, and VPN-CP platform fit: These three AMX instruments share the same 7.2V battery bay, connector pinout, and BMS handshake protocol. One pack covers all three. No adapter or wiring change needed.
  • Bench tested on actual hardware: We cycled this pack through probe initialisation and sustained sensor logging sequences. The BMS held stable through the current spike at probe power-up and did not trip under continuous measurement load.
  • Pre-deployment calibration cycle: After fitting this pack, run a full calibration cycle from the instrument menu before heading into the field. The instrument maps battery state during calibration — skipping it causes the low-battery indicator to fire prematurely on the first measurement session.

BMS lockout after the instrument sat unused in a carry case for months

Ni-MH cells self-discharge during storage, and if the pack drops below the BMS recovery threshold, the charger may show no activity and the instrument will not power on. This is a protection state — not a dead cell. Connect the battery to the charger and leave it for at least 30 minutes before assuming it has failed. Most chargers will begin a trickle recovery cycle and restore the pack to a chargeable voltage above 6.0V.

Readings resetting or dropping out mid-logging session

This happens when sustained sensor load pulls the pack voltage below the instrument's operating threshold for a split second. It is not always visible on the charge indicator because the voltage recovers immediately after the dropout. The root cause is usually a partially degraded original pack — not a charger fault. A fresh pack at full charge holds voltage steady under continuous sensor draw, and the logging session completes without reset.

Compatible Models

Panjam Phast VPT-CP VPN-CP

Replaces Part Numbers

57-0962

Technical Specifications

Voltage7.2V
Amp Hours3500mAh
Capacity3500mAh
Rate25.2Wh
Net Weight303g /10.69 oz
Gross Weight443g /15.63 oz
Approximate Weight443g /15.63 oz
Dimension 134.20 x 51.00 x 17.70 mm

Product Highlights

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

Frequently Asked Questions

My AMX Panjam powers on fine but shuts down the moment it starts transferring data to a PC via USB — why?

USB data transfer adds a second current draw on top of active sensor load, and the combined pull can push the pack below the instrument's cutoff threshold momentarily. This is more likely with an aged cell that sags under load even when the indicator shows partial charge. A fresh pack at full capacity handles the combined draw without voltage sag. Charge the new pack fully before attempting a USB transfer session.

The new pack will not charge — the charger light stays off or flashes an error after months of the original battery sitting unused in the instrument.

The Ni-MH cells have self-discharged below the BMS recovery floor, which puts the pack in a protection state the charger cannot exit without a trickle input. Leave the pack connected to the charger for 30 to 45 minutes — most chargers will detect the low-voltage state and begin a slow recovery cycle. Once cell voltage climbs back above approximately 6.0V, normal charge resumes. Do not assume the pack is faulty until this recovery window has passed.

The battery percentage on the AMX Phast VPT-CP jumps around on reboot — shows 80%, then drops to 40% on the next startup.

The instrument's voltage-threshold indicator is recalibrating to the new cell's discharge curve, which differs slightly from the worn original pack it replaced. The reading stabilises after two or three full charge-discharge cycles. Run the calibration sequence from the instrument menu after each of the first two full charges — this gives the instrument a consistent reference point and the percentage display settles to accurate readings by the third cycle.

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

AMX Panjam Replacement Battery, 7.2V, 3500mAh, 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