Yakattack 10Ah vs OKMO 15Ah LiFePO4 Battery Shortfall Analysis！

As an angler, choosing the right battery for your fish finder is critical.Reddit user has a Yakattack 10Ah battery for his Humminbird Piranhamax 4, which he plans to use after the ice melts. Below is a rationalization of battery capacity and a performance comparison between the Yakattack 10Ah and OKMO 15Ah LiFePO4 batteries to help you make the best choice.

I. Is 10Ah battery enough?
Take Humminbird Piranhamax 4 as an example, its power consumption is about 0.3A-0.5A (depending on screen brightness and sonar intensity).

Theoretical range of a 10Ah battery:

                        10Ah
Endurance =  ———   =20H
                         0.5A

For single day or short fishing trips (8-12 hours), the 10Ah battery is perfectly adequate. However, the capacity may be insufficient if the following conditions are encountered:

Low temperature environment: Battery capacity decreases due to low temperature (Li-ion capacity loss can be up to 20%-30%).

High brightness use: When the screen brightness is set to the highest, the power consumption may increase to 0.7A, and the battery life will be shortened to about 14 hours.

Multi-day camping and fishing: requires frequent charging, increasing inconvenience.

II. Shortcomings of Yakattack 10Ah Battery
As a lightweight lithium battery, Yakattack 10Ah battery is suitable for short-distance fishing, but compared with OKMO 15Ah LiFePO4 battery, it has the following shortcomings:

1. Capacity and range gap
Yakattack 10Ah: Sufficient for single day use, but cannot cover multi-day needs.

OKMO 15Ah:

                        15Ah
Endurance =  ———   =30H
                         0.5A

The battery life is increased by 50%, easily support 2-3 days fishing trip without frequent charging.

2. Battery technology differences
Yakattack 10Ah:

May use common lithium ion (Li-ion) or lithium polymer (LiPo) technology, cycle life is about 500-800 times.

Unstable performance at high or low temperatures, fast capacity decay in long-term use.

OKMO 15Ah LiFePO4:

Lithium Iron Phosphate (LiFePO4) technology, cycle life 2000-5000 times, 3-5 times more than ordinary lithium batteries.

Support -20°C to 60°C wide temperature operation, low temperature capacity loss of only 10%-15%, more reliable in extreme environments.

3. Safety and Durability
Yakattack 10Ah:

Ordinary lithium batteries have the risk of thermal runaway when overcharging and short-circuiting, so outdoor use needs to be cautious.

The capacity decreases significantly after long-term use, and frequent replacement increases the cost.

OKMO 15Ah LiFePO4:

Natural high temperature resistance, non-flammable and non-explosive, built-in over-charging/over-discharging/short-circuit protection, high safety.

Even if it is charged and discharged every day, it can be used stably for more than 5 years, with lower maintenance cost.

4. Weight and Portability
Yakattack 10Ah: about 1.2kg, lightweight but limited capacity.

OKMO 15Ah LiFePO4: about 2 kilograms, slightly heavier, but 50% longer life, and supports IP65 waterproof and shockproof design, which is more suitable for complex outdoor environments.

5. Long-term cost-effective
Yakattack 10Ah: the unit price is about 60-80 dollars, but it needs to be replaced in 1-2 years, so the long-term cost is higher.

OKMO 15Ah LiFePO4: unit price is about $120-150 USD, with a long lifespan of 5-10 years, and the average daily cost is only 1/3 of the former.

III, Conclusion: why recommend OKMO 15Ah LiFePO4 battery?
Worry-free capacity: 15Ah power supports 30 hours of battery life, easily coping with multi-day fishing or extreme environment.

Lifespan crushing: 2000 cycles lifespan, 3-5 times more than ordinary batteries, saving the trouble of frequent replacement.

Safe and reliable: LiFePO4 technology eliminates the risk of thermal runaway, and the waterproof and shockproof design is fearless of outdoor challenges.

Low temperature resistance: -20°C can still maintain more than 85% capacity, no need to worry about power shrinkage during ice fishing or early spring season.

Choose OKMO 15Ah LiFePO4 battery, with double the battery life, military grade safety and “once and for all” durability, your fish finder can be online all the time in any water.