Product Specifications for 6V 12Ah LiFePO4 Rechargeable Battery (72Wh)
| BM Part #: | LF-LA6V12A |
|---|---|
| Voltage: | 6.4 Volt (Nominal) |
| Capacity: | 12 Ah |
| Energy Capacity: | 72 Wh |
| Terminals: | F2 (0.25") |
| Type: | LiFePO4 |
| Length: | 3.54" |
| Width: | 2.76" |
| Height: | 3.98" |
| Shipping Weight: | 1.50Lbs |
| Warranty: | 1 Year |
- Drop-In Lead-Acid Replacement: Designed as a direct substitute for 6V sealed lead-acid batteries, with an F2 connector and compact 3.54" x 2.76" x 3.98" dimensions that fit standard SLA battery compartments.
- 2,000+ Cycle Life: Rated for over 2,000 charge cycles at 80%+ retained capacity — far outlasting the 200–300 cycle lifespan typical of lead-acid batteries, and a much better long-term value.
- Weighs Just 1.5 lbs: Dramatically lighter than a comparable SLA battery, reducing strain on equipment and making transport, installation, and handling noticeably easier.
- Stable Power Output: Maintains consistent voltage throughout the discharge cycle, so devices run at full performance — not the gradual fade you get as a lead-acid battery depletes.
- Wide Discharge Temperature Range: Operates reliably from -4°F to 140°F, handling cold storage environments and hot outdoor conditions with equal dependability.
- UN38.3 Certified: Has passed the international safety standard for lithium battery transport, confirming safe, compliant performance from the moment it ships to the end of its service life.
Product Description
If your equipment runs on a 6V lead-acid battery, you've likely dealt with the familiar frustrations — the bulk, the gradual performance drop, and the replacement costs that keep coming around. This 6V 12Ah LiFePO4 battery is the direct upgrade: lighter, longer-lasting, and engineered to deliver consistent power from the very first charge to the very last.
A Smarter Battery Chemistry
LiFePO4 — short for Lithium Iron Phosphate — is widely recognized as one of the safest and most thermally stable lithium chemistries available today. It resists overheating far better than older lithium technologies, holding up reliably under demanding conditions without the risk of thermal runaway. The chemistry is also free from the toxic lead and corrosive sulfuric acid found in traditional sealed lead-acid batteries, making it a cleaner choice for both your equipment and the environment.
Dramatically Longer Service Life
A standard sealed lead-acid battery typically holds up for 200–300 charge cycles before capacity begins to fade noticeably. This LiFePO4 battery is rated for 2,000+ cycles while retaining over 80% of its original capacity — potentially ten times the service life of the battery it replaces. Over time, that longevity translates directly into fewer replacements and a lower total cost of ownership.
Consistent Power You Can Rely On
This battery delivers a typical capacity of 12Ah at 72Wh, with a minimum rated capacity of 11.9Ah. More importantly, LiFePO4 chemistry maintains a stable voltage output throughout most of its discharge cycle — something lead-acid batteries simply can't match as they age. Your devices won't gradually underperform as the battery drains. They'll run at full strength right up until it's time to recharge. A maximum discharge rate of 10 amps gives it plenty of headroom for even higher-draw applications.
A Fraction of the Weight
At just 1 lb 8 oz, this battery weighs a fraction of what a comparable 6V lead-acid battery would. That weight difference is immediately noticeable in any situation where portability matters — emergency lighting kits, portable equipment, or devices that need to be moved or installed regularly. Its compact footprint of 3.54" x 2.76" x 3.98" is sized to fit comfortably in most battery compartments designed for similarly sized SLA units.
Dependable Across a Wide Temperature Range
This battery is rated for discharge in temperatures ranging from -4°F all the way up to 140°F — a range that covers everything from cold garages and outdoor winter conditions to hot summer environments. Charging operates between 32°F and 104°F, covering virtually all normal indoor and outdoor charging scenarios. For longer-term storage, keeping the battery in a cool location around room temperature will help it hold its charge best.
UN38.3 Certified for Safety and Shipping
This battery has passed UN38.3 certification — the international safety standard for lithium batteries in transport. That testing covers altitude simulation, extreme temperature exposure, vibration, shock, and short-circuit scenarios. It's a meaningful benchmark that confirms the battery has been rigorously evaluated well beyond typical everyday use. It ships compliantly and arrives ready to install.
Where This Battery Fits
This 6V 12Ah LiFePO4 battery is well-suited as a drop-in replacement for sealed lead-acid batteries across a wide range of applications — including emergency and backup lighting systems, exit signs, home security and alarm panels, power wheels and ride-on toys, deer feeders, and portable LED lanterns. If your device currently runs on a 6V SLA battery, this is a high-performing, longer-lasting alternative worth a close look.
Important: A LiFePO4-compatible charger is required for this battery. Do not use a standard lead-acid charger, as it operates on a different charge profile and can damage the battery or shorten its lifespan.
Frequently Asked Questions
Can I use this to replace my existing 6V sealed lead-acid (SLA) battery?
In most cases, yes. This battery is designed as a direct replacement for standard 6V SLA batteries and shares a similar form factor (3.54" x 2.76" x 3.98"). Just confirm that your device's battery compartment can accommodate those dimensions, and make sure you have a compatible LiFePO4 charger on hand — a standard lead-acid charger will not work with this battery.
Do I need a special charger?
Yes — a charger specifically designed for LiFePO4 chemistry is required. Lead-acid chargers use a different charge profile and should never be used with this battery, as they can damage the cells or significantly shorten its lifespan. We carry compatible LiFePO4 chargers sized for this 6.4V system if you need one.
How long does it take to charge?
At the standard charge rate of 2.4 amps, you can expect a full charge in 6–7 hours. With a compatible fast charger running at up to 5 amps, that drops to 3–4 hours.
What kinds of devices is this battery a good fit for?
This battery works well in any application currently powered by a 6V sealed lead-acid battery. Common uses include emergency and backup lighting, exit signs, home security and alarm systems, ride-on toys and power wheels, deer feeders, and portable LED lanterns.
Is this battery safe to ship?
Yes. This battery has passed UN38.3 certification, which is the internationally recognized safety standard for lithium battery transport. It ships in full compliance with applicable regulations. If you plan to travel with it by air, check your airline's current policies for lithium batteries, as specific rules can vary by carrier.
How should I store this battery when it's not in use?
For storage of less than one month, temperatures between -4°F and 140°F are acceptable. For storage up to three months, keep it between -4°F and 113°F. For long-term storage of up to one year, a cool environment between -4°F and 68°F — near room temperature — is ideal for preserving charge and battery health.
