Victron energy Phoenix Smart 12/30 (1+1) User manual

Manual
EN
Handleiding
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Manuel
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Anleitung
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Manual
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Användarhandbok
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Manuale
IT
Phoenix Smart Charger
12/30 (1+1) 24/16 (1+1)
12/30 (3) 24/16 (3)
12/50 (1+1) 24/25 (1+1)
12/50 (3) 24/25 (3)

1. Safety instructions
•Always provide proper ventilation during charging.
•Avoid covering the charger.
•Never try to charge non-rechargeable - or frozen batteries.
•Never place the charger on top of the battery when charging.
•Prevent sparks close to the battery. A battery being charged could emit
explosive gasses.
•Battery acid is corrosive. Rinse immediately with water if acid comes into
contact with skin.
•This device is not suitable for use by children. Store the charger out of reach
of children.
•This device is not to be used by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction.
•Connection to the mains supply must be in accordance with the national
regulations for electrical installations. In case of a damaged supply cord
please contact the manufacturer or your service agent.
•The charger may only be plugged into an earthed socket.

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2. Installation
•Install the charger vertically on a non-combustible surface with the
supply terminal facing down. To optimise cooling, maintain a minimum
distance of 10 cm below and above the product.
•Install close to the battery, but never immediately above the battery (to
prevent damage due to gas formation by the battery).
•Use flexible multi-core copper cables for the connections: see safety
instructions.
•Poor internal temperature compensation (e.g. ambient conditions of
battery and charger not within 5°C) may shorten the life span of the
battery.

3. Quick user guide
A. Connect the battery charger to the battery or batteries.
B. Connect the battery charger to the wall socket using the AC cable (can be
ordered separately).
All the LEDs light up briefly and once the charger has been activated the
relevant status LEDs light up, depending on the status of the charger.
By default the charger starts up in normal mode and bulk.
C. If required, press the MODE button to select a different charging algorithm
(the battery charger remembers the mode when it is disconnected from the
power supply and/or battery).
After selecting reconditioning, the RECONDITION LED will light up and start
to blink when reconditioning is active.
The battery charger switches to LOW (low power) when the MODE button is
held down for 3 seconds. The LOW LED will then light up and remain lit, and
the maximum output current will be limited to 50% of the rated output power.
LOW mode can be deactivated by holding the MODE button down for
another 3 seconds.
D. The battery will be about 80% charged and ready for use when the
ABSORPTION LED lights up.
E. The battery will be fully charged when the FLOAT (trickle charging) or
STORAGE LED lights up.
F. You can now interrupt the charging at any time by disconnecting the power
supply to the charger.

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4. Key properties and features
4.1. Bluetooth functionality
Set-up, monitoring and updating of the charger. Option for parallel
redundant charging and option for external voltage and temperature
compensation using the Smart Battery Sense (separately available).
New functions can be added once they become available using Apple and
Android smartphones, tablets and other devices.
When using Bluetooth functionality, a PIN can be set to prevent
unauthorised access to the device. This PIN can be reset to its default
value (000000) by holding the MODE button down for 10 seconds.
4.2. VE.Direct port
For a wired connection with a Color Control, Venus GX, PC or other
devices.
4.3. Programmable relay
Can be programmed (e.g. with a smartphone) for activation by an alarm or
other events.
4.4. ‘Green’ battery charger with very high efficiency
With an efficiency of up to 94%, these battery chargers generate up to four times
less heat than the industry standard. And once the battery is fully charged,
power consumption drops to less than 1 Watt, which is five to ten times better
than the industry standard.
4.5. Sustainable, safe and silent
- Low thermal load on the electronic components.
- Overheating protection: The output current drops if the temperature rises to
60°C.
- The charger is cooled by means of natural convection. This eliminates the
need for a noisy cooling fan.
4.6. Temperature-compensated charging
The optimum charging voltage of a lead acid battery is inversely proportional to
the temperature. The Phoenix Smart Charger measures the ambient
temperature at the start of the charging phase and compensates for the
temperature while charging. The temperature is measured again when the

battery charger is in low-current mode during absorption or storage. Special
settings for a cold or warm environment are therefore not required.
4.7. Adaptive battery management
Lead acid batteries must be charged in three phases, namely [1] bulk charging,
[2] absorption charging and [3] float charging.
Several hours of absorption charging are required to fully charge the battery and
to prevent early defects due to sulphation¹.
However, the relatively high voltage during absorption shortens the battery’s life
span as a result of corrosion at the positive plates.
Adaptive battery management limits corrosion by reducing the absorption period
if possible, i.e. when charging a battery that is already (almost) fully charged.
4.8. Storage mode: less corrosion of the positive plates
Even the lower float charge voltage that follows absorption charging will cause
corrosion. It is therefore essential to lower the charging voltage even more if the
battery remains connected to the charger for more than 48 hours.
4.9. Reconditioning
A lead acid battery that is insufficiently charged or is left in an uncharged
condition for several days or weeks will deteriorate due to sulphation1. If this is
noticed in time, the sulphation can sometimes be partially reversed by charging
the battery to a higher voltage using a low current.
Notes:
Reconditioning must only be used now and then on flat-plate VRLA (gel and
AGM) batteries, as the gases formed during reconditioning dry out the
electrolyte.
VRLA batteries with cylindrical cells build up more internal pressure before the
gases are formed and therefore lose less water during reconditioning. Some
manufacturers of batteries with cylindrical cells therefore recommend
reconditioning in case of cyclical application.
Reconditioning can be applied to wet-cell batteries to ‘balance’ the cells and to
prevent acid stratification.
1For more information about batteries, see
our book ‘Energy Unlimited’ (this can be downloaded from www.victronenergy.com) or
http://batteryuniversity.com/learn/article/sulfation_and_how_to_prevent_it

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Some manufacturers of battery chargers recommend impulse charging to
reverse the sulphation. However, most battery experts agree there is no
conclusive evidence that impulse charging is better than charging with a
low current / high voltage. This is confirmed by our own tests.
4.10. Lithium-ion (LiFePO₄) batteries
Li-ion batteries are not subject to sulphation and do not have to be fully
charged on a regular basis.
However, Li-ion batteries are highly sensitive to high or low voltages.
This is why Li-ion batteries are often equipped with an integrated system
for cell balancing and to protect against low voltages (UVP: Under Voltage
Protection).
Important note:
NEVER attempt to charge a lithium-ion battery if the temperature of the
battery is below 0°C.2
4.11. Remote on-off
There are three ways to switch on the device:
1. Short the L and H pins (factory default)
2. Pull the H pin to a high level (e.g. the battery plus)
3. Pull the L pin to a low level (e.g. the battery minus)
4.12. Alarm LED
If an error occurs, the ALARM LED will light up red. The status LEDs indicate the
type of error with a blink code. See the following table for the possible error
codes.
Error
LOW
BULK
ABS
FLOAT
STORAGE
ALARM
Bulk time
protection ○◎○○○●
Internal
Error ○◎◎◎○●
Charger
over-
voltage
○○◎○◎●
2For more information about lithium-ion batteries, see http://www.victronenergy.com/batteries/lithium-
battery-12,8v/

○ Off
◎Blinking
● On
4.13. Automatic voltage compensation
The charger compensates for the voltage drop over the DC cables by gradually
increasing the output voltage if the charging current rises.
The fixed voltage offset is 100mV. The voltage offset is scaled with the charge
current and added to the output voltage. The voltage offset is based on 2x 1-
meter cable, contact resistance and fuse resistance.
Example calculation for the 12/50 (1+1):
The cable resistance R can be calculated with the following formula:
=×

Here R is the resistance in ohms (Ω), ρ is the resistivity of copper (1.786x10^-8
Ωm at 25°C), l is the wire length (in m) and A is the surface area of the wire (in
m²).
A widely used distance from charger to battery is 1 metre. In this case the wire
length is 2 metres (plus and minus). When using a 6AWG cable (16mm²) the
wire resistance is:
 =1,786 ×10−8 × 2
16 ×10−6 = 2.24Ω
Installing a fuse close to the battery is highly recommended. The resistance of a
standard 80A fuse is:
 = 0.720Ω
The overall resistance of the circuit can then be calculated with the following
formula:
 = +
Therefore:
 = 2.24Ω + 0.720Ω = 2.96Ω
The required voltage drop compensation over the cable can be calculated with
the following formula:
=×
In which U is the voltage drop in volts (V) and I is the current through the wire in
amperes (A).
The voltage drop will then be:
=50 × 2.96Ω =148 for the full 50A charging current.

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4.14. Three (3) output versions
The three output version chargers have an integrated FET battery isolator
and therefore feature three isolated outputs
Although all outputs can supply the full rated output current, the combined
output current of all outputs is limited to the full rated output current.
By using the three-output version charger it is possible to charge three
separate batteries with only a single charger while keeping the batteries
isolated from each other.
The outputs are not regulated individually. One charge algorithm is applied
to all outputs.
5. Charging algorithms
5.1. Battery selection
The charge algorithm of the charger must fit the battery type connected to
the charger. The following table shows the three predefined battery types
available. A custom battery type can be programmed by the user.
Charging voltages at room temperature:
MODE
ABS
V
FLOAT
V
STORAGE
V
RECONDITION
Max V@% of
Inom
NORMAL
14.4
13.8
13.2
16.2@8%, 1h
max
HIGH
14.7
13.8
13.2
16.5@8%, 1h
max
LI-ION
14.2
13.5
13.5
N/A
For 24V battery chargers: multiply all values by 2.

NORMAL (14.4V): recommended for wet-cell flat-plate lead-antimony batteries
(starter batteries), flat-plate gel and AGM batteries.
HIGH (14.7V): recommended for wet-cell lead-calcium batteries, Optima spiral cell
batteries and Odyssey batteries.
LI-ION (14.2V): recommended for Lithium Iron Phosphate (LiFePo4) batteries.
CUSTOM (Adj.): recommended for any other type of battery other the the above
mentioned if the adjustable voltages are set according to the battery manufacturer
recommendations.
MODE button
Once the battery charger has been connected to the AC power supply, press the
MODE button to select a different charging algorithm if required (the battery charger
remembers the mode after disconnecting the power supply and/or battery).
After selecting reconditioning, the RECONDITION LED will light up and start to blink
when reconditioning is active.
The battery charger switches to LOW (low power) when the MODE button is held
down for 3 seconds. The LOW LED will then remain lit. LOW mode will remain active
until the MODE button is held down for another 3 seconds.
When LOW is active, the output current is limited to max. 50% of the rated output
power.
Intelligent 7-stage charging algorithm for lead acid batteries:
(with optional reconditioning)
1. BULK
Charges the battery using the maximum current until the absorption voltage is
reached. At the end of the bulk phase, the battery will be about 80% charged
and ready for use.
2. ABS - Absorption
Charges the battery using a constant voltage and a decreasing current until it is
fully charged. See the above table for the absorption voltage at room
temperature.
Variable absorption time:
The absorption time is short (at least 30 minutes) if an almost fully charged
battery is connected and increases to 8 hours for a totally discharged battery.
3. RECONDITION
RECONDITION is an option for the NORMAL and HIGH charging programs and

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can be selected by pressing the MODE button again after selecting the
desired charging algorithm.
During RECONDITION, the battery is charged to a higher voltage using a
low current (8% of the rated current). RECONDITION takes place at the
end of the absorption phase and ends after one hour or sooner once the
higher voltage has been reached.
The RECONDITION LED will be lit while charging and will blink during
RECONDITION.
Example:
For a 12/30 battery charger: the reconditioning current is 30 x 0.08 = 2.4A.
4. FLOAT
Float charging. Keeps the battery at a constant voltage and fully charged.
5. STORAGE
Storage mode. Keeps the battery at a lower constant voltage to limit gas
formation and corrosion of the positive plates.
6. READY (battery fully charged)
The battery is fully charged when the FLOAT or STORAGE LED is lit.
7. REFRESH
Slow self-discharging is prevented by automatically ‘refreshing’ the battery
with a brief absorption charge.

5.2. Lithium-ion (LiFePO₄) batteries
When charging a lithium-ion battery, the charger uses a specific charging
algorithm for lithium-ion batteries to maximise their performance. Select LI-ION
using the MODE button.
5.3. Fully user-programmable charging algorithm
If the three pre-programmed charging algorithms are not suitable for your
purposes, you can also program your own charging algorithm using Bluetooth or
the VE.Direct interface.
If a self-programmed charging algorithm is selected, the NORMAL, HIGH and LI-
ION LEDs will not be lit. The status LEDs indicate the location of the charging
program in the charger.
If the MODE button is pressed during a self-programmed charging algorithm, the
charger will return to the pre-programmed NORMAL charging algorithm.
5.4. If a load is connected to the battery
A load can be applied to the battery during charging. Note: The battery will not
be charged if the charging current exceeds the output current of the battery
charger.
Reconditioning will not be possible if a load is connected to the battery.
5.5. Starting a new charging cycle
A new charging cycle starts if:
A. The charger is in the float or storage phase and the current rises to its
maximum value for more than 4 seconds due to a load.
B. The MODE button is pressed while charging.
C. The mains power is disconnected and reconnected.

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5.6. Calculation of the charging time
A lead battery is about 80% charged at the start of the absorption phase.
The time T until 80% charged can be calculated as follows:
T = Ah / I
In which:
Iis the charging current (= current from the charger minus any current due
to a load).
Ah the number of ampere hours that should be charged.
A full absorption period up to 8 hours will be required to charge a battery
100%.
Example:
Charging time to 80% for a fully discharged 220Ah battery when charging it
with a 30A battery charger: T = 220 / 30 = 7.3 hours.
Charging time to 100%: 7.3 + 8 = 15.3 hours.
A Li-ion battery is more than 95% charged at the start of the absorption
phase and will be fully charged after about 30 minutes of absorption charging.
5.7. Use as a power supply
The charger can be used as a power supply (a load is present but no battery is
connected). The supply voltage can be set using Bluetooth or the VE.Direct
interface.
When used as a power supply, only the BULK, ABSORPTION, FLOAT and
STORAGE LEDs will light up and remain lit.
When the charger is set up as a power supply, it will not respond to the remote
on-off.
If the MODE button is pressed while using the charger as a power supply, it will
return to the pre-programmed NORMAL charging algorithm.

6. Technical specifications
Phoenix Smart Charger
12V,
2 outputs
12/30(1+1)
12/50(1+1)
12V,
3 outputs
12/30(3)
12/50(3)
24V,
2 outputs
24/16(1+1)
24/25(1+1)
24V,
3 outputs
24/16(3)
24/25(3)
Input voltage 230 VAC (range: 210 – 250 V)
DC input voltage range 290 – 355 VDC
Frequency 45-65 Hz
Power factor 0,7
Back current drain AC disconnected: < 0,1 mA AC connected and charger remote off: < 6 mA
No load power consumption 1 W
Efficiency
12/30: 94%
12/50: 92%
12/30: 94%
12/50: 92%
94% 94%
Charge voltage 'absorption'
Normal: 14,4V High: 14,7V
Li-ion: 14,2V
Normal: 28,8V High: 29,4V
Li-ion: 28,4V
Charge voltage 'float'
Normal: 13,8V High: 13,8V
Li-ion: 13,5V
Normal: 27,6V High: 27,6V
Li-ion: 27,0V
Storage mode
Normal: 13,2V High: 13,2V
Li-ion: 13,5V
Normal: 26,4V High: 26,4V
Li-ion: 27,0V
Fully programmable Yes, with Bluetooth and/or VE.Direct
Charge current house battery 30 / 50 A 30 / 50 A 16 / 25 A 16 / 25 A
Low current mode 15 / 25 A 15 / 25 A 8 / 12.5 A 8 / 12.5 A
Charge current starter battery 3 A (1+1 output models only)
Charge algorithm 7 stage adaptive (3 stage adaptive for Li-ion)
Battery capacity
150-300 Ah (30A version)
250-500 Ah (50A version)
80-160 Ah (16A version)
125-250 Ah (25A version)
Number of battery connections 2 3 2 3
Protection Battery reverse polarity (fuse, not user accessible) / Output short circuit / Over temperature
Can be used as power supply Yes, output voltage can be set with Bluetooth and/or VE.Direct
Voltage and temperature sense Smart Battery Sense
Operating temp. range
-20 to 60°C (0 - 140°F)
Rated output current up to 40°C, derate linearly to 20% at 60°C
Humidity (non-condensing)
max 95%
Relay (programmable)
DC rating: 5A up to 28VDC
ENCLOSURE
Material & Colour aluminium (blue RAL 5012)
Battery-connection Screw terminals 16 mm² (AWG6)
AC-connection IEC 320 C14 inlet with retainer clip (AC cord with country specific plug must be ordered separately)
Protection category IP43 (electronic components), IP22 (connection area)
Weight kg (lbs) 3,5 kg
Dimensions (hxwxd) 180 x 249 x 100 mm (7.1 x 9.8 x 4.0 inch)
STANDARDS
Safety
EN 60335-1, EN 60335-2-29
Emission
EN 55014-1, EN 61000-6-3, EN 61000-3-2
Immunity
EN 55014-2, EN 61000-6-1, EN 61000-6-2, EN 61000-3-3

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1. Veiligheidsvoorschriften
•Zorg altijd voor voldoende ventilatie tijdens het laden.
•Dek de lader niet af.
•Probeer nooit een niet oplaadbare of bevroren accu te laden.
•Plaats de lader nooit tijdens het laden bovenop de accu.
•Voorkom vonken in de buurt van de accu.Tijdens het laden van een
accu kunnen er explosieve gassen worden afgeven.
•Accuzuur is corrosief. Bij aanraking met de huid dient dit met
overvloedig water te worden afgespoeld.
•Dit apparaat is niet geschikt voor gebruik door kinderen. Bewaar de
oplader buiten het bereik van kinderen.
•Dit apparaat mag niet gebruikt worden door personen (inclusief
kinderen) met verminderde fysieke, sensorische, motorische of mentale
capaciteiten, of personen zonder ervaring of kennis, behalve als zij
onder toezicht staan of instructies hebben ontvangen.
•Aansluiting op het elektriciteitsnet moet in overeen-stemming zijn met de
nationale regelgeving voor elektrische installaties. Neem bij een
beschadigd elekticiteitsnoer contact op met de fabrikant of leverancier.
•De lader mag alleen in een geaard stopcontact worden gestoken.

2. Installatie
•Installeer verticaal op een onbrandbaar oppervlak met de
voedingsklemm omlaag. Neem voor een optimale koeling een
minimale afstand van 10 cm onder en boven het product in acht.
•Installeer dicht bij de accu maar nooit rechtstreeks boven de accu
(om schade wegens gasvorming van de accu te voorkomen)
•Gebruik flexibele meeraderige koperen kabel voor de aansluitngen:
zie veiligheidsaanwijzingen.
•Een slechte interne temperatuurcompensatie (bijv.
Omgevingsomstandigheden accu en lader niet binnen 5°C) kan
leiden tot een kortere levensduur van de accu.

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3. Quick user guide
A. Sluit de acculader aan op de accu of accu's.
B. Sluit de acculader aan op op de wandcontactdoos d.m.v. de AC kabel
(apart bij te bestellen).
Alle LED’s gaan kort aan en zodra de lader opgestart is gaan de
betreffende status LED’s aan afhankelijk van de toestand waarin de
lader zich bevind.
Default start de lader op in normal mode en bulk.
C. Druk, indien nodig, op de knop MODE om een ander laadalgoritme te
kiezen (de acculader onthoudt de modus als deze van de voeding
en/of de accu wordt losgekoppeld).
Als herconditionering wordt geselecteerd, brandt de LED
RECONDITION en gaat deze knipperen als de herconditionering actief
is.
De acculader schakelt over op LOW (lage stroom) door 3 seconden
lang de knop MODE ingedrukt te houden. De LOW-LED zal dan
continue gaan branden en de maximale uitgangsstroom wordt beperkt
tot max. 50% van de nominale uitgangsstroom. LOW kan worden
beëindigd door nogmaals 3 seconden lang de knop MODE ingedrukt te
houden.
D. De accu is voor ongeveer 80% opgeladen en klaar voor gebruik als de
LED ABSORPTION gaat branden.
E. De accu is volledig geladen als de LED FLOAT (druppellading) of
STORAGE (opslag) brandt.
F. U kunt het opladen op elk gewenst moment stoppen door de voeding
naar de lader te onderbreken.

4. De meest belangrijke eigenschappen en
feiten
4.1 Bluetooth functionaliteit
Set-up, bewaken en actualiseren van de lader. Mogelijkheid tot parallel
redundant laden en mogelijkheid tot externe spanning en temperatuur
compensatie d.m.v. de Smart Battery Sense (los verkrijgbaar).
Nieuwe functies kunnen toegevoegd worden zodra ze beschikbaar zijn met
behulp van Apple en Android smartphones, tablets en andere apparaten.
Bij gebruik van de bluetooth functionaliteit kan een pincode ingesteld
worden om ongeoorloofde toegang tot het apparaat te voorkomen. Deze
pincode kan worden gereset naar zijn default (000000) door de MODE knop
10 seconden ingedrukt te houden.
4.2 VE.Direct poort
Voor een bedrade verbinding met een Color Control, Venus GX, PC of
andere apparaten.
4.3 Programmeerbaar relais
Can be programmed (e.g. with a smartphone) for activation by an alarm or
other events.
4.4 ‘Groene’ acculader met zeer hoge efficiëntie
Met een efficiëntie tot 94% ontwikkelen deze acculaders tot vier keer minder
hitte in vergelijking met de industrienorm. En zodra de accu volledig is
opgeladen, daalt het stroomverbruik naar minder dan 1 watt en dat is vijf tot
tien keer beter dan de industrienorm.
4.5 Duurzaam, veilig en stil
-Lage thermische belasting op de elektronische componenten.
-Bescherming tegen oververhitting: De uitgangsstroom neemt af als de
temperatuur tot 60ºC stijgt.
-Koeling van de lader gebeurt d.m.v. natuurlijke convectie. Hierdoor is
een lawaaiige koelventilator niet nodig.

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4.6 Temperatuur-gecompenseerd laden
De optimale laadspanning van een loodzuuraccu is omgekeerd evenredig
met de temperatuur. De Phoenix Smart Charger meet de
omgevingstemperatuur in het begin van de laadfase en compenseert de
temperatuur tijdens het opladen. De temperatuur wordt opnieuw gemeten
als de acculader zich in de lage stroomsterktemodus tijdens de absorption
of storage bevindt. Speciale instellingen voor een koude of warme
omgeving zijn daarom niet nodig
4.7 Adaptive battery management
Loodzwavelzuuraccu's dienen in drie fases te worden opgeladen, namelijk
[1] bulklading, [2] absorptielading en [3] druppellading.
Meerdere uren absorptielading is nodig om de accu volledig op te laden
en vroegtijdige storing door sulfatering¹ te voorkomen.
De relatief hoge spanning tijdens de absorptie verkort echter de
levensduur als gevolg van corrosie aan de positieve platen.
Adaptief accumanagement beperkt de corrosie door de absorptietijd
indien mogelijk te verlagen, d.w.z.: als een accu wordt opgeladen die
reeds (bijna) volledig is opgeladen.
4.8 Opslagmodus: minder corrosie van de positieve platen
Zelfs de lagere druppelladingsspanning die na de absorptielading volgt, zal
corrosie veroorzaken. Daarom is het van wezenlijk belang om de
laadspanning nog verder te verlagen als de accu meer dan 48 uur aan de
acculader blijft aangesloten..
4.9 Reconditioning
Een loodzuuraccu die onvoldoende is opgeladen of gedurende meerdere
dagen of weken in ontladen toestand is gelaten, zal door sulfatering
verslechteren. Als het op tijd wordt opgemerkt, kan de sulfatering soms
deels ongedaan worden gemaakt door de accu op te laden met een lage
stroom naar een hogere spanning.
Opmerkingen:
Reconditioning dient enkel af en toe te worden toegepast op vlakke-plaat-
VRLA- (gel- en AGM-) accu's, omdat de daarbij ontstane gassen het
elektrolyt uitdrogen.
VRLA-accu's met cilindrische cellen bouwen meer interne druk op voordat
de gassen ontstaan en verliezen daarom minder water bij de reconditioning.

Sommige fabrikanten van accu's met cilindrische cellen bevelen daarom de
reconditioning aan in geval van cyclische toepassing.
Reconditioning kan worden toegepast op natte accu's om de cellen ‘in
evenwicht’ te brengen en om zuurstratificatie te voorkomen.
Sommige fabrikanten van acculaders bevelen impulslading aan om de
sulfatering ongedaan te maken. De meeste accu-experts zijn het er echter
over eens dat er geen overtuigend bewijs is dat impulsladen beter werkt dan
oplading met lage stroom / hoge spanning. Dit wordt door onze eigen tests
ook bevestigd.
4.10 Lithium-ion (LiFePO₄) accu's
Li-ion accu’s sulfateren niet en hoeven niet regelmatig volledig geladen te
worden.
Maar Li-ion accu’s zijn erg gevoelig voor een te lage- of te hoge spanning.
Li-ion accu’s zijn om deze reden vaak voorzien van een geïntegreerd
systeem om de cellen te egaliseren (cell balancing) en te beschermen tegen
een te lage spanning (UVP: Under Voltage Protection).
Belangrijke opmerking:
Probeer NOOIT om een lithium-ion-accu op te laden als de temperatuur van
de accu onder 0°C ligt.3
4.11 Remote on-off
There are three ways to switch on the device:
1. Short the L and H pins (factory default)
2. Pull the H pin to a high level (e.g. the battery plus)
3. Pull the L pin to a low level (e.g. the battery minus)
3For more information about lithium-ion batteries, see
http://www.victronenergy.com/batteries/lithium-battery-12,8v/