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Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty

    Buy cheap Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty from wholesalers
     
    Buy cheap Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty from wholesalers
    • Buy cheap Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty from wholesalers

    Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty

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    Brand Name : Topband
    Model Number : TB12250F-S104A_00
    Certification : MSDS
    Price : Negotiable
    Payment Terms : L/C, T/T
    Supply Ability : 450Mwh/year
    Delivery Time : 2~4weeks for samples; 4~6weeks for mass production
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    Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty


    Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2 years Warranty

    1. Specification

    NOItemsDescription
    Normal Specification
    1Nominal Voltage12.8V
    2Normal Capacity250Ah
    3Internal Resistance≤20mΩ
    4Series-Parallel applicationup to 4 series-connected applications
    5Communication function/
    Standard Charge
    6Charge operation temperature range0~45℃
    7Normal charge voltage14.6±0.1V
    8Recommended float charge voltage(for Standby use)13.8±0.1V
    9Allowed MAX constant charge current80A@Battery initial Temp 25±5℃
    10Recommended charge current≤80A
    Standard Discharge
    11Discharge operation temperature range-20~60℃
    12Output Voltage Range8.0~14.6V
    13Allowed MAX constant discharge current80A @Battery initial Temp 25±5℃
    14Discharge peak current100A/30min,350A/3s
    15Discharge end voltage8.0V


    2. Electrical Characteristics & Test Condition
    Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.

    NOItemsCriterionCondition
    1Min Capacity≥250AhRest for 1 hour after fully charged, then discharge with 0.33C current until the battery reaches the cutoff voltage. you can stop and define the Discharging current*time value (Ah) as battery capacity.
    2



    Cycle life (DOD%100)

    ≥2000cycle

    Charge / CC(0.33C)/CV(14.6V);
    End current : 0.05C;
    Rest time : 1h;
    Discharge / CC(0.5C);
    End voltage : 8.0V;
    Repeat above process until discharge capacity is no more than 80% of normal value. Accumulated times is defined as cycle life.

    3


    Discharge Temperature
    Characteristics

    -20℃≥70%At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. Record the ratio between discharging & charging capacity.
    0℃≥80%
    25℃100%
    55℃≥95%
    4Charge Retention abilityremain capacity≥90%Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage.


    3. Circuit Protection
    The batteries are supplied with a LiFePO4 Battery Management System (BMS) that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.

    Test itemContentCriterion
    Over chargeOver-charge protection for each cell3.80±0.03V
    Over-charge release for each cell3.60±0.05V
    Over-charge release methodUnder the release voltage
    Over dischargeOver-discharge protection for each cell2.00±0.05V
    Over-discharge release for each cell2.30±0.05V
    Over-discharge release methodCharging
    Over currentDischarge over current protection350~550A
    Protection delay time10~40ms
    Over current release methodRelease after cutoff the load.

    Over
    Temperature

    Battery over temperatureProtection @65±5℃
    Release @50±5℃

    Over
    Temperature

    Battery lower temperatureProtection @100±5℃
    Release @70±15℃


    4. Dimensional Drawing






















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