LiftMaster 29-NP712 12V 7AH Battery
The LiftMaster 29-NP712 is a 12V 7AH sealed lead-acid replacement battery used with various LiftMaster commercial gate operators, perimeter access systems, and backup-power applications where the parts diagram calls for this battery size. It is commonly used in battery backup circuits for gate operators and related LiftMaster access equipment. Some operators use one battery while others use two or more, so the quantity should be confirmed before ordering. Battery replacement should be based on voltage, amp-hour rating, terminal type, physical size, and the operator manual, not just the model family name.
This product page is written for buyers replacing a known LiftMaster part number, not for guessing from appearance alone. Many LiftMaster gate operator parts look similar across generations, so the safest ordering method is to match the part number from the original component, the operator parts diagram, or the model-specific service manual.
Compatible With
- Various LiftMaster commercial gate operators using 12V 7AH batteries
- Various LiftMaster perimeter access systems using 12V 7AH backup batteries
- Select LiftMaster and Elite sliding gate operators when the manual calls for 29-NP712 or equivalent 12V 7AH battery
- LiftMaster LA400 battery applications are commonly associated with 12V 7AH replacement batteries - verify terminal type and quantity
- Any LiftMaster system where the service manual specifies 29-NP712, 29-NP-712, or a matching 12V 7AH SLA battery
Also Known As / Related Part Numbers
- 29-NP712
- 29-NP-712
- LIF-29-NP712
- 12V 7AH battery
- 12V 7Amp battery
- 12V 7Ah sealed lead acid battery
- SLA 12V 7AH battery
- AGM 12V 7AH battery
Features and Specifications
| Manufacturer | LiftMaster |
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| Part Number | 29-NP712 |
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| Product Type | Replacement battery |
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| Voltage | 12V |
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| Capacity | 7AH |
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| Battery Type | Sealed lead-acid / AGM style replacement battery |
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| Common Size Reference | Approximately 6 in L x 2-3/4 in W x 4 in H; verify actual battery dimensions |
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| Application | Select LiftMaster gate, access, and backup-power systems |
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Technician Notes
- Many LiftMaster operators require two batteries, while some use one. Check the existing battery count before ordering.
- Replace batteries as a matched set when the operator uses multiple batteries of the same age and type.
- Battery problems can also be caused by charger, harness, board, or AC power issues, so repeated battery faults should be diagnosed.
Before Ordering Checklist
- Confirm voltage is 12V and capacity is 7AH.
- Confirm terminal type and physical dimensions match the original battery.
- Confirm how many batteries the operator requires.
- Check battery age and replace matched sets together when appropriate.
- Recycle old sealed lead-acid batteries properly.
Professional Advisory
Do not short battery terminals or install batteries with reversed polarity. If the operator shows charging faults, blown fuses, heat damage, or repeated battery failure, have the charging circuit inspected by a qualified technician.
Product Questions and Answers
How many 29-NP712 batteries do I need?
It depends on the operator. Some LiftMaster systems use one 12V 7AH battery, while others require two or more. Check the manual and the existing battery tray.
Is 29-NP712 only for one LiftMaster model?
No. It is used with various LiftMaster commercial gate, perimeter access, and backup-power applications where a 12V 7AH battery is specified.
Should I replace both batteries at the same time?
If the operator uses a matched pair, replacing both at the same time is usually the better service practice so one weak battery does not drag down the new one.
