Description
Saft BA-5800A/U Battery 5.8V
The Saft BA-5800A/U is a military-style battery used in select GPS and field electronic applications where dependable power and correct-fit replacements matter. If your existing battery label shows BA-5800A/U, this is the direct like-for-like model designation to match.
Because “BA-” batteries can be deployed across multiple devices and sometimes have configuration differences (fit, connector style, and device-specific requirements), the safest way to confirm compatibility is to match the exact part number on your old battery and verify the device make/model.
BatteryPlex can help you confirm the correct replacement quickly—share your device model and a photo of the original battery label to prevent ordering the wrong battery.
Key Features
- Correct model match: BA-5800A/U designation for military/GPS battery replacement needs
- Mission-oriented reliability: built for demanding field electronics (application dependent)
- Reduced downtime: replace the battery and keep equipment operating
- Compatibility support: expert help verifying fit using device model + battery label
- Ideal for spares: commonly stocked as a ready-to-use replacement for supported devices
Replaces / Compatible Models
- Direct replacement part number: Saft BA-5800A/U
Note: Verified cross-references and alternate equivalents depend on the exact device and the original battery label details. If you provide your equipment make/model (or a photo of the label), we can map compatible equivalents accurately.
Used In / Applications
- GPS equipment that specifies BA-5800A/U (model dependent)
- Military field electronics requiring BA-5800A/U form/fit (application dependent)
- Portable mission-critical devices where the battery label matches BA-5800A/U
Information Gain Section
How to confirm you have the right battery (fast checklist):
- Match the label: confirm your old battery reads BA-5800A/U exactly.
- Confirm the device model: write down the GPS/military equipment manufacturer + model.
- Check fit details: compare physical dimensions and any connector/terminal style to the original.
- When unsure: send BatteryPlex a photo of the old battery label so we can verify compatibility before you order.
This simple check prevents the most common replacement issue: ordering a battery that shares a similar name but differs in fit or device requirement.
FAQ Section
Is the Saft BA-5800A/U rechargeable?
Many BA-series batteries are primary (non-rechargeable). Always confirm your device requirements before use and do not attempt to charge a battery unless it is specifically designed to be rechargeable.
Will this BA-5800A/U work in my GPS unit?
It will work only in GPS units that specify BA-5800A/U and match the required fit/connection. Share your GPS make/model and we can help confirm compatibility.
How do I confirm I’m ordering the correct replacement?
Match the exact part number on your old battery (BA-5800A/U), then verify your device make/model and compare physical fit/connector style. If you can, send a photo of the battery label.
Do you provide equivalent part numbers or alternates?
Yes—equivalents depend on the specific device and label details. Provide your equipment make/model and any additional numbers from the battery label so we can identify compatible alternates accurately.
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Replacements
6135-01-440-7774
6135-99-798-9851
6135014407774
6665-99-760-9742
BA-5800
BA-5800/U
BA-5800A/U
BA-5800U
BA5800
BA5800A/U
BA5800U
NSN: 6135-01-440-7774
NSN: 6135-99-798-9851
NSN: 6665-99-760-9742
Also Available…
NSN 6135-01-440-7774
Compatible Part Numbers: 6135-01-440-7774, 6135-99-798-9851, 6135014407774, 6665-99-760-9742, BA-5800, BA-5800/U, BA-5800A/U, BA-5800U, BA5800, BA5800A/U, BA5800U, NSN: 6135-99-798-9851, NSN: 6665-99-760-9742
Key features
- A non-replaceable fuse is incorporated in the negative leg.
- A normally closed thermal fuse (TCO) is incorporated in the battery. It is non-replaceable and non-resettable.
- A diode is incorporated to prevent charging or flow of current into the battery.
- A device consisting of a manually activated switch and resistor designed to discharge the battery to 0 V is built into the battery.
- Made in the USA
Applications - CAM
- GPS
- AN/PSN-10
- CP-1995
- PSN-8
- PSN-11
- PLGR


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