Wagan 25A-7410 User manual

We are constantly improving our products so specifications are subject to change
without notice. Visit our website for the latest product information.
Nous améliorons constamment nos produits, alors
les spécifications sont sujettes à changement
sans préavis. Visitez notre site Web, pour obtenir
les dernières informations sur nos produits.
Estamos mejorando nuestros productos constantemente,
por lo tanto, las especificaciones están sujetas a
cambios sin previo aviso. Visite nuestro sitio web para
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Item No. / Artículo No/ Article n° :
25A—7410
40A—7411
DC to DC Battery Charger
Chargeur de batterie CC à CC
Cargador de batería DC a DC
25A DC to DC
Battery Charger (7410)
40A DC to DC
Battery Charger (7411)
25A DC to DC
Battery Charger (7410)
40A DC to DC
Battery Charger (7411)
User’s Manual / Guide d’Utilisation / Manual de Usuario

DC to DC Battery Charger™by Wagan Tech®
1www.wagan.com
Thank you for purchasing the DC to DC Battery Charger™by Wagan Tech®. With
normal care and proper treatment, it will provide years of reliable service. Please
read all operating instructions carefully before use.
The 25A and 40A DC to DC Battery Chargers are designed to provide the
optimal charging characteristics for your auxiliary battery from either your
alternator or external solar source. The solar controller is designed with
Maximum Power Point Tracking (MPPT) to maximize the power coming from your
solar panels up to the maximum rated output. The DC to DC chargers also allow
you to select either vehicle power or solar power priority and is programmable
for all common types of automotive lead acid batteries and LiFePO4type starting
batteries.
CAUTION
• Do not charge a LiFePO4battery when temperature is below 32ºF (0ºC).
• Do not operate the battery charger unless you have read and understood
this manual and the charger is installed as per these installation instructions.
We recommend that the charger be installed by a qualified person.
• The battery charger should not be used by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they are supervised or have been instructed on how to
use the appliance by a person responsible for their safety.
• Do not alter or disassemble the Battery Charger under any circumstances.
• Only use the battery charger for charging 12V standard automotive lead
acid, Gel, AGM, Calcium or LiFePO4type batteries.
• Check the manufacturer's data for your battery to ensure that the maximum
voltage of the profile you select as shown in the "Charge Control" section
of this manual does not exceed the manufacturer's recommended max
charging voltage. If the max voltage is too high for your battery type,
please select another charging profile.

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
2
• Check the mfg's data for your battery to ensure that the "Continuous
Current Rating" of the charger does not exceed the mfg's recommended
max charging current.
• When using the Battery charger to charge a Lithium Iron Phosphate battery,
only batteries that feature a built-in battery management system featuring
built-in under and over voltage protection and cell balancing are suitable.
This charger is NOT compatible with other lithium ion or metal battery
types.
• The battery charger is not intended to supply power to a low voltage
electrical system other than to charge a battery
• Cable and fuse sizes are specified by various codes and standards which
depend on the type of vehicle into which the Battery Charger is installed.
Selecting the wrong cable or fuse size could result in harm to the installer
or user and/or damage to the battery charger or other equipment installed
in the system. The installer is responsible for ensuring that the correct cable
and fuse sizes are used when installing this Battery Charger.
• Never smoke or allow a spark or flame in the vicinity of the battery or
engine. this may cause the battery to explode.
• To assist with the safe operation and use of the Battery Charger when
connected to the battery:
• a) wear complete eye and clothing protection. Avoid touching eyes
while working near a battery.
• b) If battery acid contacts your skin or clothing, remove the affected
clothing and wash the affected area of skin immediately with soap
and water. If battery acid enters your eye, immediately flood the
eye with running cold water for at least 10 min and seek medical
assistance immediately.
sWARNING: Risk of explosive gases: Working in the vicinity of a lead-acid
battery is dangerous. Batteries generate explosive gases during normal
operation. For this reason, you must follow the instructions when installing
and using the charger.

DC to DC Battery Charger™by Wagan Tech®
3www.wagan.com
PRODUCT OVERVIEW
Remote monitor
connection
Connection
hardware
Solar Priortity
button
Mode
button
Mounting
slots
Input/
output
leads

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
4
INSTALLATION
Mounting
The Battery Charger is designed for a variety of installation environments,
including chassis rail, engine cabin, and driver cabin. The Battery Charger uses
advanced technology so that the product can withstand extremely turbulent, wet,
dusty, and muddy environments.
Install the Battery Charger as close to the auxiliary battery as possible and mount
the unit securely with appropriate mounting screws.
80 mm
70 mm
120 mm 120 mm
25A DC to DC
Battery Charger (7410) 40A DC to DC Battery Charger (7411)
Front of Unit Front of Unit

DC to DC Battery Charger™by Wagan Tech®
5www.wagan.com
Wiring
The Battery Charger wire may be not long enough for installation. If you need to
extend the wire, please check the below table for suggested wire sizes. You can
choose wires that are equal to or larger than this size.
25A DC to DC Battery
Charger (7410) 40A DC to DC Battery Charger (7411)
<16 ft (5m)
long <32 ft (10m) long <16 ft (5m) long <32 ft (10m) long
Input + (Yellow)
Output + (Red)
Ground (Black) 10AWG 8AWG 8AWG 6AWG
Ignition (Blue) 20AWG 20AWG 20AWG 20AWG
It is very important that all wire extensions are well connected, to ensure the
stable and reliable operation of the product. For your convenience, butt splice
connectors have been provided. After a secure connection is made, use the heat
shrinkable tubing or electrical tape to completely cover any exposed wiring to
prevent a short to surrounding metal.
Notes:
• Disconnect the negative battery cable (Earth) from the vehicle’s starting
battery before installation.
• If your vehicle has a fixed voltage or temperature compensating alternator
(standard alternators) installed, leave the Ignition Override cable (BLUE
color) open. If your vehicle has a smart (variable voltage) alternator
installed, the Ignition Override cable must be connected to the vehicle’s
ignition. The Battery Charger will only operate when the vehicle’s ignition
is turned on.

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
6
Input Turn On Turn Off
12V Standard Alternator
24V Standard Alternator >13.1V >26.2V <12.8V <25.6V
12V Smart Alternator
24V Smart Alternator >12.0V >24.0V <11.8V <23.6V
• Do not re-connect the negative connection of the battery until all other
connections are secure and insulated.
to Output (+)
to Vehicle Ground
to Solar Panel (+)
to Ignition
(for smart alternator)
to Input (+)
to Remote Monitor
(optional)
RED
BLACK
BLACK (W/SOCKET)
GREEN
BLUE
YELLOW
Fuse Specification
All recommended fuses should be connected in series in circuit. Bolt down fuses
are preferred because they ensure a low resistance connection. Blade-type fuses

DC to DC Battery Charger™by Wagan Tech®
7www.wagan.com
are not recommended as they can result in a high resistance connection which
causes excess heat and may damage the fuse holder and/or the wiring. Self-
resetting circuit breakers are not recommended as they may trip prematurely due
to the heat generated by the current flowing through the wires.
Input + (Yellow)
Output + (Red) 25A DC to DC Battery Charger (7410) — 40A fuse 40A DC to DC Battery Charger (7411) — 60A fuse
Ignition (Blue) 3A fuse
Solar Input (Green) 25A DC to DC Battery Charger (7410) — 40A fuse
40A DC to DC Battery Charger (7411) — 60A fuse
TYPICAL SETUP
RED
BLACK
GREEN
BLUE
Standard Alternator−
Do Not Connect
Smart Alternator−
to Vehicle Ignition
YELLOW
FUSE
AUX.
FUSE
FUSE
Remote Monitor Connection

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
8
OPERATION
ALTERNATOR
SOLAR
FAULT
MODE
SOLAR
PRIORITY
STD GEL AGM CAL LiFePO4
Battery Type LEDs
Solar
charge
LED
Fault
LED Solar Priority LED
Alternator
charge
LED
Selecting Battery Type
Long Press the Mode button to select the battery type. There are 5 battery
chemistries available: Standard Lead Acid, Gel, AGM, Calcium and LiFePO4.
Keep pressing the button momentarily until the Battery Chemistry LED you want is
flashing. After you release the button, your selection is entered and saved. Your
selection will be restored automatically even after the Battery Charger is fully
disconnected and reconnected. The default Battery Chemistry is STD.
Solar Priority Mode
Press the Solar Priority button to prioritize input from the solar panel over
charging from the alternator. The solar priority LED will light up when selected.

DC to DC Battery Charger™by Wagan Tech®
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LED Charge Indicator
You can tell which Charging Stage the battery is in by how fast the Alternator
and/or Solar charge LEDs are flashing.
Short flash = Bulk or Absorption charging stage
Long flash = Float charging stage
Fault Indicator LEDs
Problems with the operation of the Battery Charger are indicated by the Fault
LED and/or a combination of solid or flashing Alternator, Solar, and Battery Type
LEDs. Use this chart to troubleshoot the problem:
Alternator
LED Solar LED Battery Type LED Fault LED Trouble Solution
Flashing
Green Off Flashing Green Off
Low voltage
detected at
Alternator
input
Check
battery
voltage
Off Flashing
Green Flashing Green Off Low voltage
detected at
Solar input
Check solar
voltage
Flashing
Green Flashing Green Flashing Green Off
Low voltage
detected at
Alternator or
Solar input
Check
voltage
of both
alternator
and solar
panel
Flashing
Green Off Off Flashing Red
High voltage
detected at
Alternator
input
Check
battery
voltage

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
10
Alternator
LED Solar LED Battery Type LED Fault LED Trouble Solution
Off Flashing
Green Off Flashing Red
High voltage
detected at
Solar input
Check solar
voltage
Off Off Off Flashing
Red Over temperature
Let the unit
cool down
for some time
or get better
ventilation
Off Off Flashing
Green Flashing Red
High voltage
detected at
output
Check the
auxiliary
battery
voltage
*Indicator lights may go from solid to flashing in fault mode.
FEATURES
The Battery Charger is specifically designed for charging auxiliary batteries. It
includes all the features needed to maintain an auxiliary battery at its optimum
condition and to prolong battery life.
Superior 3-Stage Charging
Using a high speed microcontroller and proprietary charging algorithm, the
Battery Charger delivers a sophisticated 3-stage charging process resulting
in a faster and more powerful charge, ideal for deep cycle batteries. The first
stage, bulk (constant current), charges the battery faster while the second stage,
absorption (constant voltage), ensures the battery is thoroughly charged. The final
stage, float, maintains the battery at a safe voltage, allowing it to be maintained
and ready for use indefinitely.

DC to DC Battery Charger™by Wagan Tech®
11 www.wagan.com
Charging Process
Current
Voltage
FloatAbsorptionBulk
Multi-Chemistry Support
The Battery Charger supports Standard Lead Acid, Gel, AGM, Calcium content
or LiFePO4batteries. The LiFePO4battery charging algorithm of this charger can
activate the lithium battery with BMS protection.
Switchmode Technology
The Battery Charger converts your vehicle’s 12V DC/24V DC alternator power to
a 12V system; allowing your batteries to be fully charged, prolonging battery life
and reliability. With the latest synchronous switching technology, the efficiency of
the Battery Charger is up to 95% at a typical full load condition.
Dual Input Operation
The Battery Charger allows two energy sources to power your auxiliary battery.
Solar input takes precedence if solar input power is strong enough. When solar
input cannot provide enough energy to charge the battery, the Battery Charger
will draw power from the alternator. It supports both 12V and 24V alternator
input, and also supports the Smart Alternator system input.

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
12
Solar Priority
The Solar Priority function allows for you to prioritize solar charging over
charging from your alternator. As long as the solar panels produce more than
25W (for 7410) or 50W (for 7411) of power, the unit will select charging by
solar. If the auxiliary battery decreases below a certain level, the unit will charge
by alternator regardless of solar input.
Solar MPPT Optimized Charging
The Battery Charger utilizes sophisticated MPPT (Maximum Power Point Tracking)
solar regulator technology. MPPT maximizes the power generated from the solar
panels to the auxiliary battery. The maximum power point tracking efficiency is
up to 95%, creating a maximum charging current of 25A/40A.
Remote Monitor (Optional)
An external remote monitor (Part. No. 7400) is available to show the status of the
charger. It shows how the auxiliary battery is charged by the alternator or the
solar panel, and other useful information.
SAFETY PROTECTIONS
Spark-Free Protection
The Battery Charger will not start charging the battery (no output) unless the
load is securely connected (except the LiFePO4mode which allows 0 volt start). It
prevents the output leads from sparking due to accidental short circuit making the
charger safer to use around batteries.
Reverse Connection Protection
Reverse connection on input and output terminals does not damage Battery
Charger internal circuit. The Battery Charger will not charge if output connections
are reversed.

DC to DC Battery Charger™by Wagan Tech®
13 www.wagan.com
Over and Under Voltage Protection
The charger will automatically shut down if there is an over voltage or under
voltage problem.
Over Temperature Protection
The charger will lower its output current if the temperature of the unit begins to
overheat.
SPECIFICATIONS
Operating Conditions
Model 25A DC to DC Battery
Charger (7410) 40A DC to DC Battery Charger (7411)
Input Voltage 9−32V DC
Maximum Input Current 25A 45A
Back Drain on Auxiliary Battery < 15mA
Output Current: 25A 40A
Input Fuse Rating 40A (Not included) 60A (Not included)
Output Fuse Rating 40A (Not included) 60A (Not included)
Maximum Output Power 300W 500W
IP Rating IP66
Size 1.7 × 5.1 × 5.7 in.
(4.3 × 12.9 ×
14.5 cm)
1.7 × 5.1 × 7.3 in.
(4.3 × 12.9 ×
18.5 cm)
Weight 1.4 lbs (0.63 kg) 2.0 lbs (0.89 kg)

©2022 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks of Wagan Corporation.
User’s Manual—Read before using this equipment
14
Model 25A DC to DC Battery
Charger (7410) 40A DC to DC Battery Charger (7411)
Operating Temperature -4˚F to 176˚F ( -20˚C to +80˚C)
Charge Control
Charge Type 3-Stage
Charging Profile STD GEL AGM Calcium LiFePO4
Maximum Voltage 14.4V 14.1V 14.7V 15.3V 14.5V
Float Voltage 13.4V 13.5V 13.4V 13.6V
Battery Range
Battery Capacity 50–500Ah, 80–800Ah
Type of Batteries Supported STD, GEL, AGM, Calcium, LiFePO4

The WAGAN Corporation warranty is limited to products sold only in
the United States.
Warranty Duration:
Product is warranted to the original purchaser for a period of one (1) year from
the original purchase date, to be free of defects in material and workmanship.
WAGAN Corporation disclaims any liability for consequential damages. In no event
will WAGAN Corporation be responsible for any amount of damages beyond the
amount paid for the product at retail.
Warranty Performance:
During the warranty period, a product with a defect will be replaced with a
comparable model when the product is returned to WAGAN Corporation with an
original store receipt. WAGAN Corporation will, at its discretion, replace or repair
the defective part. The replacement product will be warranted for the balance of the
original warranty period. This warranty does not extend to any units which have
been used in violation of written instructions furnished.
Warranty Disclaimers:
This warranty is in lieu of all warranties expressed or implied and no representative
or person is authorized to assume any other liability in connection with the sale of our
products. There shall be no claims for defects or failure of performance or product
failure under any theory of tort, contract or commercial law including,but not limited
to negligence, gross negligence, strict liability, breach of warranty, and breach of
contract.
Returns:
WAGAN Corporation is not responsible for any item(s) returned without an official
Return Authorization number (RA#). Please contact our customer service team by
phone or email to obtain an RA#. You can also visit our website and chat with our team
during our normal business hours. For more details and instructions on how to process
a warranty claim, please read the “Returns” section under the “Contact” page on our
website. WAGAN Corporation is not responsible for any shipping charges incurred in
returning the item(s) back to the company for repair or replacement.
©2022
WAGAN Corp. Limited Warranty

17 www.wagan.com
Chargeur de batterie CC à CC de Wagan TechMD
Merci d’avoir acheté le Chargeur de batterie CC à CC de Wagan TechMD.
Une utilisation normale et un traitement adapté vous garantirons des d’années
d’utilisation sans problème. Veuillez lire attentivement toutes les instructions
d’utilisation avant de l’utiliser.
Les chargeurs de batterie CC à CC 25 A et 40 A sont conçus pour fournir les
caractéristiques de charge optimales pour votre batterie auxiliaire à partir
de votre alternateur ou d'une source solaire externe. Le contrôleur solaire est
conçu avec poursuite des points de puissance maximale (MPPT) pour maximiser
l'énergie provenant de vos panneaux solaires jusqu'à la puissance nominale
maximale. Les chargeurs CC à CC vous permettent également de sélectionner
la priorité de l'alimentation du véhicule ou de l'alimentation solaire et sont
programmables pour tous les types courants de batteries automobiles au plomb
et de batteries de démarrage de type LiFePO4.
ATTENTION
• Ne chargez pas une batterie LiFePO4lorsque la température est inférieure
à 0 °C.
• Ne pas utiliser le chargeur de batterie à moins d’avoir lu et compris ce
manuel et que le chargeur soit installé conformément aux instructions
d’installation. Nous recommandons de faire installer le chargeur par une
personne qualifiée.
• Le chargeur de batterie ne doit pas être utilisé par des personnes (y compris
des enfants) dont les capacités physiques, sensorielles ou mentales sont
réduites, ou qui manquent d'expérience et de connaissances, à moins
qu'elles ne soient surveillées ou qu'elles aient reçu des instructions sur
l'utilisation de l'appareil par une personne responsable de leur sécurité.
• En aucune circonstance le chargeur de batterie ne doit être modifié ou
démonté.
• Utilisez uniquement le chargeur de batterie pour charger des batteries de
type plomb-acide, gel, AGM, calcium ou LiFePO4standard de 12 V pour
automobiles.

©2022 Wagan Corporation. Tous droits réservés.
Wagan Tech et wagan.com sont des marques de commerce utilisées par Wagan Corporation.
Guide d’Utilisation—Lire avant d’utiliser cet équipement
18
• Vérifiez les données du fabricant de votre batterie pour vous assurer que
la tension maximale du profil que vous sélectionnez, comme indiqué dans
la section « Contrôle de la charge » de ce manuel, ne dépasse pas la
tension de charge maximale recommandée par le fabricant. Si la tension
maximale est trop élevée pour votre type de batterie, veuillez sélectionner
un autre profil de charge.
• Vérifiez les données du fabricant de votre batterie pour vous assurer que
le « courant continu nominal » du chargeur ne dépasse pas le courant de
charge maximal recommandé par le fabricant.
• Lorsque vous utilisez le chargeur de batterie pour charger une batterie au
lithium-fer-phosphate, seules les batteries dotées d'un système intégré de
gestion de la batterie avec protection intégrée contre les sous-tensions et les
surtensions et équilibrage des cellules sont adéquates. Ce chargeur n'est
PAS compatible avec d'autres types de batteries lithium-ion ou métal.
• Le chargeur de batterie n'est pas destiné à alimenter un système électrique
à basse tension, sauf pour charger une batterie.
• Les tailles des câbles et des fusibles sont indiquées par divers codes et
normes qui dépendent du type de véhicule dans lequel le chargeur de
batterie est installé. Un mauvais choix de câble ou de la taille de fusible
pourrait nuire à l’installateur ou à l’utilisateur ou endommager le chargeur
de batterie ou tout autre équipement installé dans le système. L’installateur
doit s’assurer que des câbles et des fusibles de la bonne taille sont utilisés
lors de l’installation de ce chargeur de batterie.
• Ne jamais fumer ni laisse pas d'étincelle ou de flamme à proximité de la
batterie ou du moteur. Cela peut causer l'explosion de la batterie.

19 www.wagan.com
Chargeur de batterie CC à CC de Wagan TechMD
• Pour aider au fonctionnement et à l'utilisation du chargeur de batterie en
toute sécurité lorsqu'il est connecté à la batterie :
• a) portez une protection complète des yeux et des vêtements. Évitez
de toucher vos yeux lorsque vous travaillez à proximité d'une batterie.
• b) Si l'acide de la batterie entre en contact avec votre peau ou vos
vêtements, retirez les vêtements concernés et lavez immédiatement la
partie de la peau touchée avec de l'eau et du savon. Si de l’acide
de batterie pénètre dans votre œil, inondez-le immédiatement avec
de l’eau froide courante pendant au moins 10 minutes et consultez un
médecin immédiatement.
sAVERTISSEMENT : Risque de gaz explosifs : Il est dangereux de travailler à
proximité d'une batterie d'accumulateurs au plomb. Les batteries génèrent
des gaz explosifs en fonctionnement normal. Pour cette raison, vous devez
suivre les instructions lors de l'installation et de l'utilisation du chargeur.