Apollo 26.517 Crane Remote Control Replacement Battery 4.8V 2500mAh
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Apollo 26.517 Crane Remote Control Replacement Battery 4.8V 2500mAh - 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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Apollo 26.517 Crane Remote Control Replacement Battery 4.8V 2500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
4.8V
Amp
2500mAh
Apollo 26.517 — 4.8V Ni-MH Replacement Battery (26.517)
This is a 4.8V, 2500mAh Ni-MH battery for the Apollo 26.517 wireless crane remote control. It fits the overhead crane and lifting equipment remote directly, restoring power to the handheld transmitter unit. Voltage and cell count match the original Apollo specification.
- Apollo 26.517 remote compatibility: The 26.517 remote uses a 4.8V Ni-MH cell pack — four NiMH cells in series. This battery matches that voltage rail and connector footprint, so the remote's internal charge circuit and low-battery detection threshold operate as the original manufacturer intended.
- Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a Ni-MH compatible charger and verified the cell pack holds stable voltage across moderate load. The pack reaches full capacity within the standard charge window and does not show premature voltage collapse under intermittent relay-activation loads.
- Infrequent-use charging protocol: Crane remotes often sit idle for weeks at a time. Top up this battery once a month during idle periods — Ni-MH cells left fully discharged for extended periods develop voltage depression and may report false low-battery readings on the next use cycle.
Solenoid activation causing power dropout on the 26.517 remote
When the remote triggers a crane solenoid or contactor, the inrush current spike can briefly drag cell voltage below the remote's cutoff threshold. This is more common with a partially discharged pack. The remote interprets this dip as a dead battery and shuts down mid-operation. Always start solenoid-activation tasks with a fully charged pack — cell voltage should read at or above 4.8V before beginning a lift cycle.
Remote showing low battery immediately after fitting a new cell
A freshly installed Ni-MH pack ships at storage voltage — typically 30–50% state of charge. The 26.517 remote's low-battery indicator triggers when resting voltage sits below its detection threshold, which a storage-state pack may fall under. This is not a faulty cell. Connect the battery to the Apollo charger and complete one full charge cycle before first use — the indicator will clear once the pack reaches operating voltage.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Apollo
- Manufacturer: CS
- Series: Standard
- Color: Yellow
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Apollo 26.517 crane remote won't power on at all after sitting unused for a few months — is the new battery dead?
This is a deep-discharge symptom, not a faulty cell. Ni-MH packs left at near-zero voltage for extended periods develop voltage depression, where individual cells drop so low the remote's circuit sees no supply at all. Connect the battery to the charger and leave it for at least 30–60 minutes before attempting to power on the remote — the cells need a recovery charge before they can deliver working voltage. If the remote powers on after that charge, the pack is functional.
The crane remote cuts out the moment I activate a hoist function, but works fine in standby — what's causing that?
Solenoid and contactor activation creates a sharp inrush current draw that momentarily pulls cell voltage below the remote's operating cutoff. A partially charged Ni-MH pack doesn't have enough headroom to absorb that spike. This isn't a wiring fault — it's a capacity-state issue. Charge the battery fully before operating the hoist; resting voltage at the terminals should measure 4.8V or higher before you begin lifting operations.
The E-stop response on my Apollo 26.517 feels slower than it should — could the battery be the cause?
E-stop response time in crane remotes is voltage-dependent — the transmitter's signal strength and the internal relay trip speed both degrade when cell voltage sags. A Ni-MH pack with voltage depression or shallow-cycle wear will run the remote but at reduced output voltage, which adds latency to safety-critical signals. Fit a freshly charged pack and verify resting terminal voltage reads at or above 4.8V before any safety-critical lift operation.
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