If users fail to float charge, battery capacity is dramatically reduced.
2.
:This is called trickle charging or float charging.
3.
Lead acid batteries will experience substantially longer life when a maintenance charger is used to " float charge " the battery.
4.
The underlying fault with all lead acid batteries is the requirement for an excessively long charge time arising from a two-stage process : bulk charge and float charge.
5.
In addition, its discharge rate should be not more than three hours and its charge rate should be not more than three hours ( C0.333 ), and it should be float charged properly.
6.
All lead acid batteries, irrespective of type, are quick to charge to 70 % of capacity within 2 or 3 hours, but require another 9 to 10 hours to " float charge " after the initial charge.
7.
The Direct Current Charging Units ( DCCU ) was used to float charge ( provide a top up charge while the set was in use ) the manpack battery, while it was mounted in a vehicle, using a clip in kit for example.
8.
For lead-acid batteries under no-load float charging ( such as in SLI batteries ), trickle charging is achieved naturally at the end-of-charge, when the lead-acid battery takes in a trickle charge to keep itself fully charged.
9.
Stage 3 is called the " U-phase " or " float charge state ", the voltage is reduced to a value that is safe to be applied for long periods ( weeks ) without significantly reduce the lifetime of the battery.
10.
:No . From Lead-acid battery # Voltages for common usages, float charging ( keeping self-discharge from running the battery down ) requires 13.4 to 13.8 volts, while standard charging requires 14.2 to 14.5 volts.
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