12V 8Ah LiFePO4 Lithium Deep Cycle Battery [10-year Warranty]

Was: $49.99
Now: $27.99
New Product, 10-year Material Warranty
5.90 (in)
3.70 (in)
2.60 (in)

Dr.Prepare 12V 8Ah Lithium Battery, Built-in BMS, 4000+ Cycles Rechargeable Battery, for Fish Finder, Radio, Power Wheels, Scooters, UPS, Lighting, Ride on Toys, Home Alarm System

Dr.Prepare's 12V 8Ah lithium batteries, backed by a 10-year warranty and service life, are the optimal choice for replacing less durable sealed lead-acid batteries. Notably, our lithium batteries offer extended assurance compared to competitors.
With LiFePO4 technology, they support 100% discharging, ensuring longer usage compared to SLA batteries, which can only output 40-60% of their power capacity. Additionally, the lightweight design, at only 1/3 of SLA weight, significantly reduces the burden when carrying it for outdoor backup power.
Upgrade to Dr.Prepare for enduring reliability and efficiency.


  • Longer Lifetime, Lower Costs】 Dr.Prepare's 12V 8Ah LiFePO4 batteries offer over 4,000 cycles, surpassing the 300-500 cycles of lead acid batteries. With the ability to discharge 100% compared to SLA's 40-60%, our lithium batteries extend the time between replacements, leading to significant savings. Expect 10 years of daily use from our batteries.
  • Cut the Weight by 60%, No More Heavy Lifting 】 Dr.Prepare's 12 volt 8Ah lithium battery weighs only 2.2 lbs, equivalent to two 500ml water bottles. In contrast, a sealed lead-acid battery typically weighs around 6 to 7 lbs, resulting in a remarkable 60% reduction in weight.
  • Built-in BMS Protection】 Our lithium batteries feature a built-in BMS with six safeguards: high temperature, overcharge, over-discharge, overcurrent, short circuit, and auto balance protection. Coupled with IP56 water and dust resistance capabilities, it ensures durability in various conditions. Moreover, devoid of heavy and rare metals, our batteries are environmentally friendly.
  • Series and Parallel Connection 】 Our lithium batteries support wiring in series to create a 24V/36V/48V battery bank system. Additionally, they can be wired in parallel to build a 12V 16Ah/24Ah/32Ah system. Furthermore, you can connect up to 16 batteries in both series and parallel to construct a robust battery bank system with a total capacity of 1638Wh. Ensure all batteries are fully charged before connecting in series.
  • Wide Applications】 Our 12V 8Ah lithium battery is the perfect replacement for your less durable SLA batteries. It is suitable for a variety of applications, including fish finders, power wheels, electric scooters, UPS backup power systems, solar gate openers, solar water pump systems, home alarm systems, home security systems, amateur radios, ride-on toys, and more (Not a starter battery).
  • Important Reminders
  • 1. For powering your lawn mower, connect 4 batteries in series (48V system).
  • 2. Ensure all batteries are fully charged before connecting in series.
  • 3. Use a lithium battery-compatible charger for charging.
  • 4. Dr. Prepare batteries will be shipped from California, USA. We provide 10-year battery warranty and lifetime technical support, if you have any questions during usage, please feel free to contact us.


Key Features

Power Expansion

Cylindrical Cells

Flexible Installation



Package Includes 

● 1 x 12V 8Ah Lithium Iron Phosphate (LiFePO4) Battery




Dr.Prepare 12V 8Ah Lithium Iron Phosphate (LiFePO4) Battery
Technical Specifications
Rated Voltage 12.8V
8Ah / 102.4Wh
Rated Capacity (0.2C) 8Ah / 102.4Wh
Cycle Life (0.2C, 68-86℉/25±5℃) More than 4,000
Maximum Continuous Discharge Current 8A
Charge Current 4A Optimal / 8A Max.
Max. Charging Voltage 14.6V
Discharge Cut-off Voltage
Self Discharge Rate 3%
Over-discharge Recovery Voltage
Charging Temperature Range
32℉~122℉/ 0℃~ 50℃
Discharging Temperature Range
-4℉~131℉/ -20℃~ 55℃
High Temperature Protection
Charging: 113℉~131F℉/50℃ ± 5℃
Discharging: 149℉~167℉/70℃ ± 5℃
Storage Temperature Range  -4~113℉ / -20~45℃ (Store for 1-3 months)
 -4~68℉ / -20~20℃ (Store for 1 year)
Recommended Operating Temperature
Terminal Bolt Size
Internal Resistance
Battery Housing
Plastic ABS
Water and Dust Resistance
2.2 lbs/1kg
5.9 x 2.6 x 3.7 in/151 x 65 x 95 mm
10-year material warranty


· Do not install the battery in a location that may be flooded.

· Do not short the battery terminals.

· Do not expose the battery to fire, extreme heat conditions, or close to any heat sources.

· Secure the battery in place to avoid any violent shaking when installing in your vehicle.

· Do not disassemble the battery.

· Do not strike fiercely or penetrate the battery.




Is it a motorcycle starter battery?
No, it is NOT a starter battery. Our battery is a deep cycle Lithium Iron Phosphate (LiFePO4) Battery, with a maximum power output of 8Ah.
Can I wire these batteries in series?
Yes, you can wire these batteries in series. Ensure all batteries are fully charged before connecting in series to maintain the stable performance of the battery bank system.
What type of battery charger should be used to charge these lithium batteries?
We recommend using a lithium battery-compatible AC to DC charger to charge these lithium batteries, preventing irreversible damage to their lifespan.
Does it work for lawn mower?
Yes, it does. Please confirm the voltage system of your lawn mower, as most lawn mowers use a 48-volt battery system. This means you should connect 4 batteries in series for use.
How to properly store this battery?
We recommend keeping the battery at 100% state of charge, or at least 30%-50% state of charge. Then disconnect the battery from any load by removing the terminal cables. Highly recommend charging the battery every 6 months when not in use to prevent over-discharge.
When storing the battery for 1-3 months, you can place it in an environment with a temperature range of -4℉~113℉ / -20℃~45℃; when storing it for 1 year, it is recommended to place it in an environment with a temperature range of -4℉~68℉ / -20℃~20℃.
More questions about this product? Please contact us .