Power House N 2087 User manual

Altronic Distributors warrants this product for one year from date of purchase from Altronics or its resellers
to the consumer. If this item is part of an installation or another product, please contact the installer or
supplier for your warranty.
During the warranty period, we undertake to repair or replace your product at no charge if found to be
defective due to a manufacturing fault. The warranty excludes damage by misuse or incorrect installation
(i.e. failure to install and operate device according to specications in the supplied instruction manual),
neglect, shipping accident, or no fault found, nor by use in a way or manner not intended by the supplier.
For repair or service please contact your PLACE OF PURCHASE.
If this item was purchased directly from Altronics please make a warranty claim by:
1. FOR MAIL ORDER CUSTOMERS (includes school and trade orders),
a) Calling your nearest store location and quoting your tax invoice number.
b) Upon contacting Altronics, we will issue an R.A. (Return Authorisation). As Altronics have a number of
service agents throughout Australia, a copy of the R.A. will be emailed, faxed or mailed to you with full
instructions of how and where to send the goods. The freight for shipping goods back to
Altronics for all repairs is at the customers expense.
c) A copy of the R.A. form, (or at the very minimum, the R.A. number) must accompany the
goods to effect the repair.
d) Altronics will pay the return freight to the customer where the warranty claim has been accepted.
e) Please quote the R.A. number in any correspondence to us.
2. FOR OVER THE COUNTER PURCHASES to make a warranty claim, please return the goods to us in
any of our stores, with a copy of your proof of purchase (tax invoice).
a) Upon leaving the goods at one of our stores, an R.A. number will be issued to you.
b) Once repaired, you will be contacted, advising that the goods are ready to be collected from the store.
It is at Altronics discretion as to whether the goods will be repaired or replaced (whilst under warranty); and
as to whether identical goods will be used to replace the item due to changes of models / products.
Note: Under no circumstances should you attempt to repair the device yourself or via a non-authorised
Altronics service centre, as this will invalidate the warranty!
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are
entitled to a replacement or refund for a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail
to be of acceptable quality and the failure does not amount to a major failure.
Distributed by Altronic Distributors Pty. Ltd.
Phone: [phone]
altronics.com.au
Revision 16/10/2020

Operating Instructions
N 2087 - 20A Model
N 2089 - 40A Model
DC to DC Dual Battery Charger
Overview
These dual input DC to DC battery chargers have been designed for in-vehicle
use where auxiliary batteries are required to be charged from solar panels or
the vehicles main battery. The chargers are available in either 20A and 40A.
They offer fully automatic, set-and-forget operation, isolating the main vehicle
battery when the engine is off, preventing discharge so you can still start your
vehicle when required. The design prioritises solar charging when connected,
providing lower load on your vehicle. It provides multi-stage charging for lead acid,
AGM/Gel, Calcium, LiON and LiFePO4 battery types. The in-built solar charge
controller accepts PV solar panels with an output voltage range of 16-25V.

DC to DC Dual Battery Charger
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Features
• Heavy duty aluminium case and mounting bracket
• Microchip monitoring and control
• Fully automatic high frequency multi stage charging
• Pulse mode technology that reduces oxidation, evens electrolyte consistency and
minimises temperature equating to longer battery life
• Easy push button chemistry select: AGM/Gel, Calcium, LiON, Deep Cycle, VRLA
and conventional ooded Lead-Acid batteries
• Internal charger temperature monitoring and power output control
• LED indicators showing state of charge
• Over charging, short circuit and over temperature protection
• Reverse polarity protection:
1. Input reverse polarity protection
2. Output reverse polarity protection
• Thermal overload protection
• Solar input overload protection
• Power cut memory function; once selected, the charger will remain on this battery
type until it is changed

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Installing the Charger
Installation of this unit will require twin core wiring - and suitable cable connectors
(not included). See Specications Table for more details. Any existing cables used in
conjunction with this charger will require checking to ensure size is suitable gauge.
Where necessary, replace with suitable gauge wiring if they do not meet minimum
specications.
• Locate where you are going to install the DC to DC charger. Ensure the charger is
located in a suitable, dry area in the vehicle or caravan.
• Ensure the charger is securely mounted using the brackets and screws provided.
Charger can be mounted overhead, vertically or horizontally.
• Measure required cable length from the main vehicle battery through to
the location of the DC to DC charger.
• Ensure all cabling meets specication and will not be exposed to excessive
heat/moving parts or abrasion.
• You can connect the optional ACC wire to the ignition of your vehicle. If ACC
wire is used, the charger will only charge from the source battery when the
ignition is on. WARNING: If you use ACC wire control with the ignition on but
the engine not running, the charger may discharge your engine battery below
the point when it can start the engine!
• If the charger is located in a camper/caravan, we recommend the use of an
Anderson style plug between the tow vehicle and the camper/caravan as shown
in the “Suggested installation to vehicle with caravan” diagram.
• Fit suitable connectors on either end of the twin core cables.

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Installing the Charger
• Connect the (-) of the auxiliary battery to the (-) shared negative wire (GROUND)
of the charger, and the (+) of auxiliary battery to the (+) positive charger
output wire (OUTPUT) using twin core wiring as per recommended cable size.
• Using the twin core wiring laid between the main starting battery and the
charger, connect the positive (+) of the starting battery to the positive
(+) red charger wire (DC INPUT), and the negative (-) of the starting battery to
the negative (-) black wire (GROUND) of the charger. Finally, connect the
solar panel wires to the charger as per the diagram, as well as the optional
ACC wire (if required).
• Ensure unused cables (e.g. ACC wire) are insulated and secured against movement.
• Check all connections are tight.
It is recommended to install 30A
fuses or circuit breakers between the
charger and each battery on the (+)
wires, located close to the batteries.

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Operating the Charger
CHARGER DISPLAY:
1. DC BATTERY
Once correctly installed, the charger is a simple “set and forget” dual
battery switch.
• Start the vehicle and let it idle.
• The charger will now recognise that there is charge being applied to the
main starting battery.
• Once the main starting battery has reached 13.0V, the charger will begin to
charge the auxiliary battery. If the ACC ignition signal is detected,
DC to DC charging will start when the source battery is 11.5V or above.
• The initial default setting is for Lead Acid batteries.
• If you are charging a battery with a different chemistry, simply change the
battery type by pressing the battery type selector button on the front panel of
the charger.
• Once selected, the charger will remain on this battery type until it is changed.
• The charger will continue to operate even after the vehicle has been switched
off, however, once the main starting battery falls below 12.5V, the charger
will automatically shut off. If the ACC wire control is used and the ignition signal
is on, charging will shut off when source battery is 10.8V or below.
2. SOLAR INPUT (works only when the DC battery input is not available)
• Once you have connected the input terminal with the solar panels positive
and negative, the charger will transfer to solar charge mode.
• If you are charging a battery with a different chemistry, simply change the
battery type by pressing the battery type selector button on the front panel
of the charger.
• Solar charging requires an input of 16-25V from solar panels. When available
solar panel voltage falls below 16V, no charge will be delivered to the
auxiliary battery.

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Specications
Model: N 2087 Model: N 2089
Type Multi Stage Multi Stage
DC Battery Input 12.5 - 16.0V 12.5 - 16.0V
Solar Input 16.0 - 25.0V 16.0 - 25.0V
Output / Charging
Voltage
14.4 - 15.4 V (stops charging
when alternator output or
vehicle battery below 12.5V
14.4 - 15.4 V (stops charging
when alternator output or
vehicle battery below 12.4V
DC Output Current 20A 40A
Solar Output Current 20A 40A
Minimum Start
Voltage
2.5V - for battery being
charged
2.5V - for battery being
charged
Charge Control
Soft Start Yes Yes
Soft Charge Current 20A 40A
Bulk Charge Voltage 14.7V (AGM/Gel), 13.5V
(Lead Acid), 15.4V (Calcium),
14.4V (LiON)
14.7V (AGM/Gel), 14.4V
(Lead Acid), 15.4V (Calcium),
14.4V (LiON)
Absorption Constant voltage with
automatic
amperage control
Constant voltage with
automatic
amperage control
Float Charge Current 13.5V (AGM/Gel), 14.4V
(Lead Acid), 13.5V (Calcium)
13.5V (AGM/Gel), 13.5V
(Lead Acid), 13.5V (Calcium)
Float Charge Current 100mA 100mA
Battery Range 18 to 250Ah 60 to 500Ah
Recommended Cable Cross-Section
0 - 1 metres 10 AWG 8 AWG
1 - 5 metres 8 AWG 6 AWG
5 + metres 6 AWG 4 AWG
WARNING: Failure to use recommended wiring will severely impact the
performance of this DC to DC charger.

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AMG/GEL LEAD ACID CALCIUM LION
BOOST 14.3 V 14.0 V 15.0 V 14.0 V
CHARGING 14.7 V 14.4 V 15.4 V 14.4 V
MAINTENANCE 13.5 V 13.5 V 13.5 V -
Charging Voltages
NOTE: Battery manufacturers sometimes specify charging voltages.
Not observing their charging instructions may void your battery’s warranty.

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Additional Information - Deep Cycle Batteries
When calculating your power usage you should add together the approximate cur-
rent draw of your connected appliances. Adjusting for how many hours you expect
them to be used during a 24 hour period. For instance, a fridge may draw up more
when getting cold, but during the day may only draw less than 2 Amps, and at night
even less as cooler temperatures make it stay cool longer.
The following example shows you typical current draw for connected lights and
fridge at three distinct periods of the day. Daytime (or Fridge only), Evening (Fridge
+ Lighting) and Overnight (Fridge only - low current draw).
Daytime
7am-5pm: 10 hours
2.7A Fridge running 30 minutes per hour: 2.7A / 2 = 1.35A
Total consumption over 10 hours: 13.5Ah
Evening
5pm-9pm: 4 hours
2.7A Fridge running 20 minutes per hour: 2.7A / 3 = 0.9A
LED Lighing: 0.6A x 2 = 1.2A
Total consumption over 4 hours: 8Ah
Overnight
9pm-7am: 10 hours
2.7A Fridge running 10 minutes per hour: 2.7A / 6 = 0.45A
Total consumption over 4 hours: 4.5Ah
Adding the three nal power consumption gures together results in a total usage of
26.4Ah over a 24 hour period.
Using the 50% rule for deep cycle batteries means that a 100Ah battery will offer
50Ah of usable capacity and require recharging in roughly 48 hours.

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Troubleshooting
Charger won’t
indicate charging
• Check charger is connected to battery
• Check terminal connection
• Check that the battery is 12V
Battery won’t charge • Check that all wiring meets specications
• Check condition of battery
• Check performance of alternator
Battery won’t fully
charge or hold charge
Batteries that are over 3 years old, severely discharged (or previously
had been severely discharged), not regularly recharged, overheated,
low in electrolyte, undercharged, overcharged or sulphated, may not
accept or hold charge. A good automotive store or battery outlet
often offer a free or low cost, in store service to check the condition
of the battery. Your battery may require replacement.
Important Safety Instructions
To avoid any personal injury, please read the safety instructions below.
This battery charger is not intended for use by children or inrm persons without supervision.
FOR AUTOMOTIVE AND RECREATIONAL VEHICLE 12V DEEP CYCLE BATTERY USE
ONLY. NOT TO BE USED WITH DRY CELL BATTERIES.
• During the charging process, do not use near naked ame. Batteries
generate gases during the charging process that may cause an explosion.
• Never smoke or light cigarettes near a battery.
• Do not place tools on top of battery or allow tools to fall onto the battery
to prevent the chance of a short circuit and sparks.
• Always wear eye protection while charging a battery.
• Ensure charging and testing is conducted in a well ventilated area.
• Inadequate ventilation may overheat the charger and cause inefcient operation.
• This battery charger is not intended for outdoor operation. Do not expose it
to moisture or extreme weather conditions.
• The ACID/FLUID within a battery is highly corrosive and poisonous. It can
produce ammable and toxic gases when charged and/or recharging and
will explode if ignited. When working with batteries, always wear eye
protection, remove jewellery and ensure the area is well ventilated. If split
it will cause severe burning to eyes, skin and clothing, damage paintwork and
corrode many metals. Ensure that power is disconnected from any appliance in
the vicinity of the spill and immediately wash any the affected area with water.
The warnings, cautions and instructions detailed in this manual cannot cover all possible
conditions and situations that may occur. Common sense and caution are important factors
when using this product. Please retain this instruction manual for future reference.