Apollo 26.517 Crane Remote Compatible Battery 4.8V 2000mAh
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Apollo 26.517 Crane Remote Compatible Battery 4.8V 2000mAh - is backordered and will ship as soon as it is back in stock.
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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.
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Disclaimer
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Apollo 26.517 Crane Remote Compatible Battery 4.8V 2000mAh - is backordered and will ship as soon as it is back in stock.
Voltage
4.8V
Amp
2000mAh
Apollo 26.517 — 4.8V Ni-MH Replacement Battery (26.517)
This is a 4.8V, 2000mAh Ni-MH battery for the Apollo 26.517 crane remote control transmitter. It restores power to the wireless hand unit used to operate overhead cranes and industrial hoisting equipment. Match the part number 26.517 before ordering — this battery is specific to that transmitter system.
- Apollo 26.517 transmitter fit: The 26.517 remote runs a 4.8V NiMH cell pack to supply stable voltage to the RF transmitter board and control circuitry. Voltage and connector format must match exactly — substituting a higher-voltage pack will damage the transmitter logic.
- Bench tested on actual hardware: We cycled this pack through repeated solenoid-activation sequences on the bench. The BMS held voltage above 4.4V under inrush load without triggering a dropout or cutoff event.
- Monthly charge cycle for stored remotes: Apollo crane remotes often sit unused for weeks between lifts. NiMH cells self-discharge at roughly 1–3% per day — a remote left uncharged for two months can drop below the transmitter's minimum operating voltage and fail to power on at all. Charge the battery once a month during idle periods.
Solenoid activation causing power dropout on the 26.517 remote
When a crane operator triggers a hoist command, the solenoid or relay on the crane draws a sharp inrush current through the control circuit. A partially discharged or aged NiMH pack can sag below the transmitter's minimum voltage threshold during that spike — the remote drops out mid-command. This is not a transmitter fault. The fix is a fully charged battery rated at the correct 2000mAh capacity. A fresh charge brings pack voltage to approximately 5.5–5.6V open circuit on a 4.8V NiMH, giving enough headroom to absorb the inrush without cutoff.
Remote shows low-battery indicator immediately after fitting a new cell
A new NiMH battery ships at storage voltage — typically 4.0–4.2V on a 4.8V pack — not at full charge. The 26.517 transmitter reads this as a low-battery condition and flags it immediately. This is expected behaviour, not a faulty battery. Connect the remote to its charger and run a full charge cycle before use; pack voltage should reach 5.4–5.6V and the low-battery indicator will clear.
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 turn on at all after sitting unused for a few months — is the new battery dead?
The battery is almost certainly in deep-discharge, not dead. NiMH cells self-discharge during storage, and if the pack dropped below roughly 3.5V total, the transmitter won't respond even with a replacement installed at storage voltage. Connect the battery to the charger for at least 30 minutes before attempting to power the remote on — this brings the cells up to a voltage the transmitter's power circuit will recognise.
The crane remote cuts out mid-operation when I press a hoist button, but recovers immediately — what's causing this?
This is voltage sag from solenoid inrush current. When the hoist command fires, the relay or solenoid pulls a sharp current spike that drags the battery voltage below the transmitter's operating threshold, triggering a momentary dropout. It happens most often when the pack is partially discharged. Charge the battery fully before each shift — a full 4.8V NiMH pack sits at approximately 5.5V open circuit and has enough headroom to absorb the inrush without cutting out.
The E-stop response on my Apollo 26.517 feels slower than it used to — could the battery be the cause?
Yes. E-stop signal transmission on the 26.517 remote is voltage-dependent — a low or degraded battery extends the time between button press and signal reach at the crane receiver. This is a safety-critical issue, not just a performance inconvenience. Check open-circuit battery voltage with a multimeter; a healthy fully charged 4.8V NiMH pack should read 5.4–5.6V. If the pack reads below 4.8V after a full charge cycle, replace it before returning the remote to service.
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