Good afternoon, dear friends!

New gel batteries with a capacity of 45 Ah (12 V) have appeared in our product line. This battery is suitable for all STRONGER anchor winches.

Batteries of the STRONGER trademark are covered by warranty service or a complete replacement of the battery or a refund within 2 years from the date of purchase of the battery, in case of proper (correct) operating conditions!

Below you can familiarize yourself with the terms of this warranty.


– For charging gel batteries, a charger should be used specifically for gel batteries, the threshold voltage of which does not exceed GEL 14.2-14.4V, AGM 14.4-14.8V, the current should not exceed 1 / 6A of the nominal battery power, those. A 100Ah battery should be charged by charging with a maximum current of not more than 16A, but only when using programmable chargers, this means that you can not use a constant current of 16A when charging from the beginning to the end of charging. When these indicators are exceeded, the gel electrolyte begins to liberate gas liberally, which is no longer absorbed back in such volumes).

– Mandatory recharge the battery within six months, if it is not used. It is very important not to interrupt the charging process until it is over. If you cut off the charge, say, by 60%, then the next time the battery will not be able to reach its full capacity – and even swinging the charge-discharge cycles will not greatly improve the situation.


– the voltage of each of the battery cells should not fall below 1.8 V (i.e., the minimum voltage of a 12-volt battery should not fall below 10.5 – 10.8 V !!); Attention going beyond the threshold indication of green light on trolling motors means that you have reached the maximum “deep” discharge of the battery, i.e. less than 10V. Stop operation immediately. Also, the battery should be charged immediately after discharge. This is especially true for a battery that has been subjected to a “deep” discharge. If the battery is in a discharged state for a long period of time, then a situation is possible in which it will be impossible to restore its full capacity.

A 100% discharge (deep discharge) is the discharge of a battery to a voltage of 10.5 Volts, and not to zero Volts.

When the battery is discharged to a critical level, irreversible chemical processes occur inside and the battery capacity can significantly decrease, so if the battery is discharged to 9V, we can say with confidence that 45-50% of the capacity is lost permanently. If a discharge of this depth happens again, then the remainder of this capacity will be only 25-30% of the nominal. Therefore, even the highest quality AGM / GEL battery can be completely destroyed by 4-5 deep discharges.



Any lead battery, regardless of its type, should be stored in a fully charged state at a temperature of -20 to +50 degrees (optimally at +20).

After several months of storage, the voltage may decrease due to self-discharge. When the voltage drops below 12.6 Volts, sulfation of lead plates begins, which can lead to a decrease in battery capacity.

During storage, it is recommended to check the voltage of the battery every six months and prevent the voltage from falling below 12.6 Volts, and when this level is reached, recharge the battery from the charger