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This optional back-up battery adds to the security of any install, maintaining power delivery to your security system even if would-be thieves try to silence the siren by disconnecting your vehicle battery.
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It should be published how long the battery should last once power is interrupted, as it stand mine lasted only a few hours. This is unacceptable as my viper gps tracking module is powered by this sam battery. Looks like I will have to get another solution.
I purchased a model like this for an older 500HF system and this model for my Viper 791XV.
My battery died one night in a downtown parking garage. I was very confident the backup system would do exactly what I needed it for. A few cars were broken into that night, but my truck was not touched.
Easy to install , a must for any alarm system. do not waste $500.00 on security system, and some low life all he has to do is to cut your battery wires , that's when this product kicks in.
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