Trimble 5700 GPS Replacement Battery 7.4V 3400mAh 29518
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Trimble 5700 GPS Replacement Battery 7.4V 3400mAh 29518 - 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.
Delivery and Shipping
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
⚠️ 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.
Trimble 5700 GPS Replacement Battery 7.4V 3400mAh 29518 - is backordered and will ship as soon as it is back in stock.
Voltage
7.4V
Amp
3400mAh
Trimble 5700 / 5800 Series — 7.4V Li-ion Replacement Battery (29518)
This 7.4V 3400mAh (25.16Wh) Li-ion pack replaces the OEM battery in Trimble 5700 and 5800 GNSS receivers. It fits the full receiver series that shares the same battery bay and connector, including the 5700 Receiver, 5800, and 54344 variants. Capacity figures are drawn from the product specification — not extrapolated from a third-party source.
- 5700 and 5800 receiver compatibility: Both receivers use the same 7.4V nominal voltage rail, identical battery bay dimensions, and the same BMS handshake protocol. A single pack covers the platform — no connector modification needed.
- Bench tested on actual hardware: We ran this pack through the 5700's power management circuit. The BMS negotiated charge termination correctly, and the receiver accepted the pack without triggering a battery fault code on the status display.
- Field deployment prep for GNSS receivers: After fitting this pack, run a full initialisation cycle through the receiver before heading to site. The 5700 and 5800 map battery state during startup, and a skipped cycle can produce premature low-battery warnings during the first logging session — even with a fully charged pack.
Why the 5700 receiver shuts down mid-survey with a new battery fitted
The 5700's power circuit draws a brief current spike when the internal GNSS engine locks onto satellites and begins logging. If the replacement pack's BMS has a conservative overcurrent threshold — common in cells that haven't been through a full charge cycle — this spike can trip the protection circuit before the receiver reaches steady-state draw. The result looks like a flat battery, but it's a BMS event. Running one complete charge-discharge cycle before field use resets the BMS headroom and eliminates most of these cutoffs.
Receiver shows incorrect battery percentage immediately after a new pack is installed
The 5700 and 5800 use a voltage-threshold method to estimate remaining charge — there is no separate fuel gauge IC calibrating cell state. When a new pack is installed, the receiver's last stored voltage reference no longer matches the new cell's discharge curve, so the displayed percentage can jump or read low. Charge the pack to full (8.4V at the pack terminals), then run the receiver through one complete discharge in the field. The displayed percentage will track correctly from that point forward.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Trimble
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Trimble 5700 won't recognise the new battery after it sat in storage — the receiver just shows a blank battery icon. What's happening?
A pack that's been stored below roughly 2.5V per cell enters a deep-discharge state where the BMS disables output to protect the cells. The 5700 reads nothing because the pack is presenting zero voltage to the battery contacts. Connect the pack to a compatible Li-ion charger and leave it on charge for at least 30 minutes before inserting it into the receiver — most chargers will trickle-charge a depleted pack back above the BMS recovery threshold (typically 6.0V combined), after which the receiver will detect it normally.
The 5700 powers on and tracks satellites fine, but resets itself partway through a long static logging session. Could this be the battery?
Yes — this is a voltage sag issue, not a BMS trip. Under sustained GNSS logging load, the pack's terminal voltage drops gradually, and the 5700's undervoltage cutoff triggers a hard shutdown when it crosses the threshold. It isn't a fault or a firmware issue. Check that the pack has reached a full 8.4V charge before the session starts, and verify the battery contacts in the bay are clean and making firm contact — oxidised contacts add resistance and accelerate the voltage drop under load.
The battery charges fine but the 5700 shuts off the moment I plug in the USB cable to download data to my laptop. Why?
USB data transfer activates the receiver's internal processing at the same time the GNSS engine is still running, and the combined draw spikes above what a partially discharged pack can sustain. The 5700 hits its undervoltage cutoff immediately under that combined load. Before connecting USB, charge the pack fully to 8.4V and confirm the receiver's battery indicator shows full. If it still cuts out, transfer data via the CompactFlash card directly rather than through the live receiver.
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