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What is the definition of ah?
Ah represents the battery term Amp hour. This is a rating given to most deep
cycle batteries and provides an indication of battery life capacity.
For example if a battery has a 100 Ah (Amp hour) rating it can provide an output
of 1 Amp for 100 hours, or 100 Amp for 1 hour (until completely discharged).
how can i calculate what battery is best for me?
Calculating the best battery for your use is easiest when you know the power
demands of your connected accessories. By measuring your power demands
you can calculate your total Amp draw, then estimate how long you expect to
use the accessories. For example, with a 10 Amp draw, over 6 hours,
your minimum requirement is a 60 Ah battery.
i have connected my battery and turned the master switch on, but the
led display will not activate when i press the on/off (19) button?
Check the battery terminals are connected tight. If there is still no display,
your battery may be completely discharged. Connect the Thunder Weekender
240 Volt battery charger following the instructions and recharge your
battery before checking the LED display again.
i have selected my battery and ah rating, but the remaining power
percentage display is not reading 100%?
Your battery inside the Weekender may not be 100% charged.
Connect the Thunder 240 Volt battery charger and recharge your battery
before checking the LED display again.
how do i know that my battery is fully charged inside the Weekender?
If you are using the Thunder Weekender 240 Volt battery charger, the unit will
be in stage 7 (float) when battery charging is fully complete and the Weekender
will display 100% on the remaining power percentage display. If you have
charged your battery via the Anderson connection using an external 12 Volt
power supply such as a DC-DC charger, the remaining power percentage
display will read 100%, this may stay at 100% if the external 12 Volt power
supply is kept on and the power draw is lower than the input charge.
For example, a 40 Amp DC-DC charger will keep the battery in positive charge
and at 100 % with a 12 Volt 3 Amp fridge drawing power from you battery.
When should i recharge my battery inside the weekender?
The Weekender LED display will release a single ‘beep’ every 60 seconds once
your battery falls to 30% remaining charge. The final three red bars on the
remaining power percentage display (18) will flash. To best protect your battery,
it is recommended to recharge at this time or as soon as possible.
Discharging your battery to 0 Volts may cause internal cell damage.
how can i measure how long the thunder Weekender 240 Volt battery charger
will take to recharge my battery?
The Thunder Weekender 240 Volt battery charger has an output rating of 6 Amp
during the bulk stage of its charge cycle. When you have your battery Ah rating,
you can roughly calculate the length of time your battery will take to recharge
from zero volt to 100% charge using the Thunder Weekender 240 Volt battery
charger by reversing the calculation used to measure battery drainage.
For example a 100 Ah battery at zero capacity with a 6 Amp charge input will take
roughly 16.6 hours to be charged. (100 / 6 = 16.6 hours).
With your battery inside the Weekender, the LED display can provide a calculation
of battery capacity via the remaining power percentage display. You can use this
remaining calculation to also aid in calculating charge times.
For example, a 100 Ah battery at 60% capacity with a 6 Amp charge input
will take roughly 6.6 hours to be charged (40 / 6 = 6.6 hours). The Thunder
Weekender 240 Volt battery charger, along with all smart battery chargers will
only charge their rated amperage for a period of time before regulating.
how do i know what stage the thunder Weekender 240 Volt battery charger is at?
The battery charger displays the current charging stage on the charger above
the Voltage algorithm, when the charger moves to the next step, the last stage’s
green LED will remain on. Once charging is complete all seven LEDs will be
displayed and the battery charger will continue in the float stage.
faq’s and trouble shooting
Frequently Asked Questions & Trouble Shooting
